diff --git a/autogen_stubs.sh b/autogen_stubs.sh
index d7ccd8b0aa..7f4af578fb 100755
--- a/autogen_stubs.sh
+++ b/autogen_stubs.sh
@@ -35,7 +35,7 @@ def _try_dlopen_$name():
   for candidate in PATHS_TO_TRY:
     try: return ctypes.CDLL(candidate)
     except OSError: pass
-  raise RuntimeError("library $name not found")
+  return None
 EOF
 }
 
diff --git a/tinygrad/runtime/autogen/comgr.py b/tinygrad/runtime/autogen/comgr.py
index 16654e9555..d4e05ec397 100644
--- a/tinygrad/runtime/autogen/comgr.py
+++ b/tinygrad/runtime/autogen/comgr.py
@@ -19,7 +19,7 @@ def _try_dlopen_amd_comgr():
   for candidate in PATHS_TO_TRY:
     try: return ctypes.CDLL(candidate)
     except OSError: pass
-  raise RuntimeError("library amd_comgr not found")
+  return None
 
 
 def string_cast(char_pointer, encoding='utf-8', errors='strict'):