diff --git a/PCbuild/build_ssl.bat b/PCbuild/build_ssl.bat
index cee64a8..357b08b 100644
--- a/PCbuild/build_ssl.bat
+++ b/PCbuild/build_ssl.bat
@@ -2,10 +2,10 @@
 if not defined HOST_PYTHON (
   if %1 EQU Debug (
     set HOST_PYTHON=python_d.exe
-    if not exist python31_d.dll exit 1
+    if not exist python33_d.dll exit 1
   ) ELSE (
     set HOST_PYTHON=python.exe
-    if not exist python31.dll exit 1
+    if not exist python33.dll exit 1
   )
 )
 %HOST_PYTHON% build_ssl.py %1 %2 %3