diff --git a/linkml_runtime/utils/schemaview.py b/linkml_runtime/utils/schemaview.py
index bc76bcaa..8d011084 100644
--- a/linkml_runtime/utils/schemaview.py
+++ b/linkml_runtime/utils/schemaview.py
@@ -15,7 +15,7 @@
 from linkml_runtime.utils.namespaces import Namespaces
 from deprecated.classic import deprecated
 from linkml_runtime.utils.context_utils import parse_import_map, map_import
-from linkml_runtime.utils.formatutils import is_empty, underscore, camelcase
+from linkml_runtime.utils.formatutils import camelcase, is_empty, sfx, underscore
 from linkml_runtime.utils.pattern import PatternResolver
 from linkml_runtime.linkml_model.meta import *
 from linkml_runtime.exceptions import OrderingError
@@ -1121,13 +1121,18 @@ def get_uri(self, element: Union[ElementName, Element], imports=True, expand=Fal
                     raise ValueError(f'Cannot find {e.from_schema} in schema_map')
             else:
                 schema = self.schema_map[self.in_schema(e.name)]
-            pfx = schema.default_prefix
             if use_element_type:
                 e_type = e.class_name.split("_",1)[0]  # for example "class_definition"
                 e_type_path = f"{e_type}/" 
             else:
                 e_type_path = ""
-            uri = f'{pfx}:{e_type_path}{e_name}'
+            pfx = schema.default_prefix
+            # To construct the uri we have to find out if the schema has a default_prefix 
+            # or if a pseudo "prefix" was derived from the schema id.
+            if pfx == sfx(str(schema.id)):  # no prefix defined in schema
+                uri = f'{pfx}{e_type_path}{e_name}'
+            else:
+                uri = f'{pfx}:{e_type_path}{e_name}'
         if expand:
             return self.expand_curie(uri)
         else:
diff --git a/poetry.lock b/poetry.lock
index 3732d198..977b3a62 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.0.0 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.1.1 and should not be changed by hand.
 
 [[package]]
 name = "annotated-types"
@@ -28,12 +28,12 @@ files = [
 ]
 
 [package.extras]
-benchmark = ["cloudpickle", "hypothesis", "mypy (>=1.11.1)", "pympler", "pytest (>=4.3.0)", "pytest-codspeed", "pytest-mypy-plugins", "pytest-xdist[psutil]"]
-cov = ["cloudpickle", "coverage[toml] (>=5.3)", "hypothesis", "mypy (>=1.11.1)", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "pytest-xdist[psutil]"]
-dev = ["cloudpickle", "hypothesis", "mypy (>=1.11.1)", "pre-commit-uv", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "pytest-xdist[psutil]"]
+benchmark = ["cloudpickle ; platform_python_implementation == \"CPython\"", "hypothesis", "mypy (>=1.11.1) ; platform_python_implementation == \"CPython\" and python_version >= \"3.10\"", "pympler", "pytest (>=4.3.0)", "pytest-codspeed", "pytest-mypy-plugins ; platform_python_implementation == \"CPython\" and python_version >= \"3.10\"", "pytest-xdist[psutil]"]
+cov = ["cloudpickle ; platform_python_implementation == \"CPython\"", "coverage[toml] (>=5.3)", "hypothesis", "mypy (>=1.11.1) ; platform_python_implementation == \"CPython\" and python_version >= \"3.10\"", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins ; platform_python_implementation == \"CPython\" and python_version >= \"3.10\"", "pytest-xdist[psutil]"]
+dev = ["cloudpickle ; platform_python_implementation == \"CPython\"", "hypothesis", "mypy (>=1.11.1) ; platform_python_implementation == \"CPython\" and python_version >= \"3.10\"", "pre-commit-uv", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins ; platform_python_implementation == \"CPython\" and python_version >= \"3.10\"", "pytest-xdist[psutil]"]
 docs = ["cogapp", "furo", "myst-parser", "sphinx", "sphinx-notfound-page", "sphinxcontrib-towncrier", "towncrier (<24.7)"]
-tests = ["cloudpickle", "hypothesis", "mypy (>=1.11.1)", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "pytest-xdist[psutil]"]
-tests-mypy = ["mypy (>=1.11.1)", "pytest-mypy-plugins"]
+tests = ["cloudpickle ; platform_python_implementation == \"CPython\"", "hypothesis", "mypy (>=1.11.1) ; platform_python_implementation == \"CPython\" and python_version >= \"3.10\"", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins ; platform_python_implementation == \"CPython\" and python_version >= \"3.10\"", "pytest-xdist[psutil]"]
+tests-mypy = ["mypy (>=1.11.1) ; platform_python_implementation == \"CPython\" and python_version >= \"3.10\"", "pytest-mypy-plugins ; platform_python_implementation == \"CPython\" and python_version >= \"3.10\""]
 
 [[package]]
 name = "cattrs"
@@ -56,8 +56,8 @@ typing-extensions = {version = ">=4.1.0,<4.6.3 || >4.6.3", markers = "python_ver
 bson = ["pymongo (>=4.4.0)"]
 cbor2 = ["cbor2 (>=5.4.6)"]
 msgpack = ["msgpack (>=1.0.5)"]
-msgspec = ["msgspec (>=0.18.5)"]
-orjson = ["orjson (>=3.9.2)"]
+msgspec = ["msgspec (>=0.18.5) ; implementation_name == \"cpython\""]
+orjson = ["orjson (>=3.9.2) ; implementation_name == \"cpython\""]
 pyyaml = ["pyyaml (>=6.0)"]
 tomlkit = ["tomlkit (>=0.11.8)"]
 ujson = ["ujson (>=5.7.0)"]
@@ -265,7 +265,7 @@ files = [
 ]
 
 [package.extras]
-toml = ["tomli"]
+toml = ["tomli ; python_full_version <= \"3.11.0a6\""]
 
 [[package]]
 name = "curies"
@@ -308,7 +308,7 @@ files = [
 wrapt = ">=1.10,<2"
 
 [package.extras]
-dev = ["PyTest", "PyTest-Cov", "bump2version (<1)", "setuptools", "tox"]
+dev = ["PyTest", "PyTest-Cov", "bump2version (<1)", "setuptools ; python_version >= \"3.12\"", "tox"]
 
 [[package]]
 name = "exceptiongroup"
@@ -370,7 +370,7 @@ files = [
 zipp = {version = ">=3.1.0", markers = "python_version < \"3.10\""}
 
 [package.extras]
-check = ["pytest-checkdocs (>=2.4)", "pytest-ruff (>=0.2.1)"]
+check = ["pytest-checkdocs (>=2.4)", "pytest-ruff (>=0.2.1) ; sys_platform != \"cygwin\""]
 cover = ["pytest-cov"]
 doc = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (>=3.5)", "sphinx-lint"]
 enabler = ["pytest-enabler (>=2.2)"]
@@ -583,7 +583,7 @@ typing-extensions = ">=4.12.2"
 
 [package.extras]
 email = ["email-validator (>=2.0.0)"]
-timezone = ["tzdata"]
+timezone = ["tzdata ; python_version >= \"3.9\" and platform_system == \"Windows\""]
 
 [[package]]
 name = "pydantic-core"
@@ -758,7 +758,6 @@ optional = false
 python-versions = "*"
 groups = ["main"]
 files = [
-    {file = "PyTrie-0.4.0-py3-none-any.whl", hash = "sha256:f687c224ee8c66cda8e8628a903011b692635ffbb08d4b39c5f92b18eb78c950"},
     {file = "PyTrie-0.4.0.tar.gz", hash = "sha256:8f4488f402d3465993fb6b6efa09866849ed8cda7903b50647b7d0342b805379"},
 ]
 
@@ -1141,7 +1140,7 @@ files = [
 ]
 
 [package.extras]
-brotli = ["brotli (>=1.0.9)", "brotlicffi (>=0.8.0)"]
+brotli = ["brotli (>=1.0.9) ; platform_python_implementation == \"CPython\"", "brotlicffi (>=0.8.0) ; platform_python_implementation != \"CPython\""]
 h2 = ["h2 (>=4,<5)"]
 socks = ["pysocks (>=1.5.6,!=1.5.7,<2.0)"]
 zstd = ["zstandard (>=0.18.0)"]
@@ -1249,11 +1248,11 @@ files = [
 ]
 
 [package.extras]
-check = ["pytest-checkdocs (>=2.4)", "pytest-ruff (>=0.2.1)"]
+check = ["pytest-checkdocs (>=2.4)", "pytest-ruff (>=0.2.1) ; sys_platform != \"cygwin\""]
 cover = ["pytest-cov"]
 doc = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (>=3.5)", "sphinx-lint"]
 enabler = ["pytest-enabler (>=2.2)"]
-test = ["big-O", "importlib-resources", "jaraco.functools", "jaraco.itertools", "jaraco.test", "more-itertools", "pytest (>=6,!=8.1.*)", "pytest-ignore-flaky"]
+test = ["big-O", "importlib-resources ; python_version < \"3.9\"", "jaraco.functools", "jaraco.itertools", "jaraco.test", "more-itertools", "pytest (>=6,!=8.1.*)", "pytest-ignore-flaky"]
 type = ["pytest-mypy"]
 
 [metadata]
diff --git a/tests/test_utils/test_schemaview.py b/tests/test_utils/test_schemaview.py
index 2cca0cfa..81fe4ede 100644
--- a/tests/test_utils/test_schemaview.py
+++ b/tests/test_utils/test_schemaview.py
@@ -923,3 +923,17 @@ def test_type_and_slot_with_same_name():
     view.add_type(TypeDefinition(name="test", from_schema="https://example.org/imported#"))
 
     assert view.get_uri("test", imports=True) == "ex:test"
+
+
+def test_uris_without_default_prefix():
+    """
+    Test if uri is correct if no default_prefix is defined for the schema. Issue: linkml/linkml#2578
+    """
+    schema_definition = SchemaDefinition(id="https://example.org/test#", name="test_schema")
+
+    view = SchemaView(schema_definition)
+    view.add_class(ClassDefinition(name="TestClass", from_schema="https://example.org/another#"))
+    view.add_slot(SlotDefinition(name="test_slot", from_schema="https://example.org/another#"))
+
+    assert view.get_uri("TestClass", imports=True) == "https://example.org/test#TestClass"
+    assert view.get_uri("test_slot", imports=True) == "https://example.org/test#test_slot"