diff --git a/source/games/duke/src/gamedef.cpp b/source/games/duke/src/gamedef.cpp
index c75dba1f2..4a702c9fe 100644
--- a/source/games/duke/src/gamedef.cpp
+++ b/source/games/duke/src/gamedef.cpp
@@ -399,7 +399,7 @@ static int popscriptvalue()
 
 void reservescriptspace(int space)
 {
-	ScriptCode.Reserve(space);
+	for (int i = 0; i < space; i++) ScriptCode.Push(0);
 }
 
 /*