diff --git a/src/d_main.c b/src/d_main.c
index e4198d129..bcfc5d1b8 100644
--- a/src/d_main.c
+++ b/src/d_main.c
@@ -1212,7 +1212,7 @@ D_ConvertVersionNumbers (void)
 //
 void D_SRB2Main(void)
 {
-	INT32 p;
+	INT32 i, p;
 
 	INT32 numbasemapheaders;