diff --git a/src/doomdef.h b/src/doomdef.h
index d8dd9f071..ec0ef9102 100644
--- a/src/doomdef.h
+++ b/src/doomdef.h
@@ -91,7 +91,7 @@ extern "C" {
 
 // Special Hashing.
 //#define NOFILEHASH
-#define NOVERIFYIWADS
+//#define NOVERIFYIWADS
 
 // Uncheck this to compile debugging code
 //#define RANGECHECK