diff --git a/makepanda/makepandacore.py b/makepanda/makepandacore.py
index 33274e9fb8..40a0b4016c 100644
--- a/makepanda/makepandacore.py
+++ b/makepanda/makepandacore.py
@@ -533,7 +533,7 @@ def ConditionalWriteFile(dest,desiredcontents):
         WriteFile(dest,desiredcontents)
 
 def DeleteCVS(dir):
-    if dir == ".": dir = "."
+    if dir == "": dir = "."
     for entry in os.listdir(dir):
         if (entry != ".") and (entry != ".."):
             subdir = dir + "/" + entry