diff --git a/kvcached/integration/sglang/autopatch.py b/kvcached/integration/sglang/autopatch.py
index 89aee9c4..dc8ff635 100644
--- a/kvcached/integration/sglang/autopatch.py
+++ b/kvcached/integration/sglang/autopatch.py
@@ -23,7 +23,10 @@
 
 
 def _env_enabled() -> bool:
-    return os.getenv("KVCACHED_AUTOPATCH", "false").lower() in ("true", "1")
+    autopatch = os.getenv("KVCACHED_AUTOPATCH")
+    if autopatch is not None:
+        return autopatch.lower() in ("true", "1")
+    return os.getenv("ENABLE_KVCACHED", "false").lower() in ("true", "1")
 
 
 @when_imported("sglang")
diff --git a/kvcached/integration/vllm/autopatch.py b/kvcached/integration/vllm/autopatch.py
index ea31c3a4..af7cd6a0 100644
--- a/kvcached/integration/vllm/autopatch.py
+++ b/kvcached/integration/vllm/autopatch.py
@@ -24,7 +24,10 @@
 
 
 def _env_enabled() -> bool:
-    return os.getenv("KVCACHED_AUTOPATCH", "false").lower() in ("true", "1")
+    autopatch = os.getenv("KVCACHED_AUTOPATCH")
+    if autopatch is not None:
+        return autopatch.lower() in ("true", "1")
+    return os.getenv("ENABLE_KVCACHED", "false").lower() in ("true", "1")
 
 
 @when_imported("vllm")
diff --git a/kvcached_autopatch.pth b/kvcached_autopatch.pth
index b9de6e14..28e7554e 100644
--- a/kvcached_autopatch.pth
+++ b/kvcached_autopatch.pth
@@ -1 +1 @@
-import os, importlib, importlib.util; (os.environ.setdefault("KVCACHED_AUTOPATCH", "1"), getattr(importlib.import_module("kvcached.autopatch"), "autopatch_all", lambda: None)()) if os.getenv("ENABLE_KVCACHED", "false").lower() in ("true", "1") and importlib.util.find_spec("kvcached.autopatch") is not None else None
+import importlib, importlib.util; (getattr(importlib.import_module("kvcached.autopatch"), "autopatch_all", lambda: None)()) if importlib.util.find_spec("kvcached.autopatch") is not None else None