diff --git a/source/sw/src/cheats.cpp b/source/sw/src/cheats.cpp
index fb6dc1c20..3c3f6e655 100644
--- a/source/sw/src/cheats.cpp
+++ b/source/sw/src/cheats.cpp
@@ -424,7 +424,7 @@ void CheatInput(void)
             }
 
         // make sure string is lower cased
-        strlwr(CheatInputString);
+        Bstrlwr(CheatInputString);
 
         // check for at least one single match
         for (i = 0; i < SIZ(ci); i++)
diff --git a/source/sw/src/scrip2.cpp b/source/sw/src/scrip2.cpp
index cc17198dd..16b1bd7a9 100644
--- a/source/sw/src/scrip2.cpp
+++ b/source/sw/src/scrip2.cpp
@@ -99,7 +99,7 @@ SWBOOL LoadScriptFile(const char *filename)
 
 
     // Convert filebuffer to all upper case
-    //strupr(scriptbuffer);
+    //Bstrupr(scriptbuffer);
 
     script_p = scriptbuffer;
     scriptend_p = script_p + size;