diff --git a/src/libloader/com.py b/src/libloader/com.py
index 752b792b..1c9a7a6b 100644
--- a/src/libloader/com.py
+++ b/src/libloader/com.py
@@ -20,6 +20,7 @@ def load_com(*names):
  global fixed
  if fixed==False:
   gencache._GetModule=patched_getmodule
+  prepare_gencache()
   fixed=True
  result = None
  for name in names: