diff --git a/codesize.sh b/codesize.sh
index 07b984665..007ed9032 100755
--- a/codesize.sh
+++ b/codesize.sh
@@ -3,7 +3,7 @@ echo "Java code:"
 cat `find src | grep \\.java$` | wc
 
 echo "Lua code:"
-cat `find src/main/resources/assets/computercraft/lua` | wc
+cat `find src/main/resources/assets/computercraft/lua | grep \\.lua$` | wc
 
 echo "JSON:"
 cat `find src/main/resources/assets/computercraft | grep \\.json$` | wc