diff --git a/src/onelogin/saml2/idp_metadata_parser.py b/src/onelogin/saml2/idp_metadata_parser.py
index 7e2bb704..097b3342 100644
--- a/src/onelogin/saml2/idp_metadata_parser.py
+++ b/src/onelogin/saml2/idp_metadata_parser.py
@@ -193,7 +193,9 @@ def parse(
                     data['idp']['singleLogoutService']['binding'] = required_slo_binding
 
                 if certs is not None:
-                    if len(certs) == 1 or \
+                    if (len(certs) == 1 and
+                        (('signing' in certs and len(certs['signing']) == 1) or
+                         ('encryption' in certs and len(certs['encryption']) == 1))) or \
                         (('signing' in certs and len(certs['signing']) == 1) and
                          ('encryption' in certs and len(certs['encryption']) == 1 and
                          certs['signing'][0] == certs['encryption'][0])):
diff --git a/tests/data/metadata/idp_metadata_multi_signing_certs.xml b/tests/data/metadata/idp_metadata_multi_signing_certs.xml
new file mode 100644
index 00000000..0cba257a
--- /dev/null
+++ b/tests/data/metadata/idp_metadata_multi_signing_certs.xml
@@ -0,0 +1,75 @@
+<?xml version="1.0"?>
+<EntityDescriptor xmlns="urn:oasis:names:tc:SAML:2.0:metadata" entityID="https://idp.examle.com/saml/metadata">
+  <IDPSSODescriptor xmlns:ds="http://www.w3.org/2000/09/xmldsig#" protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol">
+    <KeyDescriptor use="signing">
+      <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
+        <ds:X509Data>
+          <ds:X509Certificate>MIIEZTCCA02gAwIBAgIUPyy/A3bZAZ4m28PzEUUoT7RJhxIwDQYJKoZIhvcNAQEF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</ds:X509Certificate>
+        </ds:X509Data>
+      </ds:KeyInfo>
+    </KeyDescriptor>
+    <KeyDescriptor use="signing">
+      <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
+        <ds:X509Data>
+          <ds:X509Certificate>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</ds:X509Certificate>
+        </ds:X509Data>
+      </ds:KeyInfo>
+    </KeyDescriptor>
+    <KeyDescriptor use="signing">
+      <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
+        <ds:X509Data>
+          <ds:X509Certificate>MIIEZTCCA02gAwIBAgIUPyy/A3bZAZ4m28PzEUUoT7RJhxIwDQYJKoZIhvcNAQEF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</ds:X509Certificate>
+        </ds:X509Data>
+      </ds:KeyInfo>
+    </KeyDescriptor>
+    <SingleLogoutService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect" Location="https://idp.examle.com/saml/slo"/>    
+    <NameIDFormat>urn:oasis:names:tc:SAML:2.0:nameid-format:transient</NameIDFormat>
+    <SingleSignOnService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect" Location="https://idp.examle.com/saml/sso"/>
+  </IDPSSODescriptor>
+</EntityDescriptor>
diff --git a/tests/src/OneLogin/saml2_tests/idp_metadata_parser_test.py b/tests/src/OneLogin/saml2_tests/idp_metadata_parser_test.py
index a6f53654..58e2852e 100644
--- a/tests/src/OneLogin/saml2_tests/idp_metadata_parser_test.py
+++ b/tests/src/OneLogin/saml2_tests/idp_metadata_parser_test.py
@@ -353,6 +353,42 @@ def test_parse_multi_certs(self):
         expected_settings = json.loads(expected_settings_json)
         self.assertEqual(expected_settings, data)
 
+    def test_parse_multi_singing_certs(self):
+        """
+        Tests the parse method of the OneLogin_Saml2_IdPMetadataParser
+        Case: IdP metadata contains multiple signing certs and no encryption certs
+        """
+        xml_idp_metadata = self.file_contents(join(self.data_path, 'metadata', 'idp_metadata_multi_signing_certs.xml'))
+        data = OneLogin_Saml2_IdPMetadataParser.parse(xml_idp_metadata)
+
+        expected_settings_json = """
+        {
+            "sp": {
+                "NameIDFormat": "urn:oasis:names:tc:SAML:2.0:nameid-format:transient"
+            },
+            "idp": {
+                "singleLogoutService": {
+                    "url": "https://idp.examle.com/saml/slo",
+                    "binding": "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect"
+                },
+                "x509certMulti": {
+                    "signing": [
+                        "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",
+                        "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",
+                        "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"
+                    ]
+                },
+                "entityId": "https://idp.examle.com/saml/metadata",
+                "singleSignOnService": {
+                    "url": "https://idp.examle.com/saml/sso",
+                    "binding": "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect"
+                }
+            }
+        }
+        """
+        expected_settings = json.loads(expected_settings_json)
+        self.assertEqual(expected_settings, data)
+
     def testMergeSettings(self):
         """
         Tests the merge_settings method of the OneLogin_Saml2_IdPMetadataParser