diff --git a/development/lua53/lua53.SlackBuild b/development/lua53/lua53.SlackBuild
index a4cb0dfefa..b4f96312df 100644
--- a/development/lua53/lua53.SlackBuild
+++ b/development/lua53/lua53.SlackBuild
@@ -92,7 +92,7 @@ sed -i \
   src/Makefile
 
 sed -i \
-  -e '/^#define LUA_ROOT/s,".*,"/usr",' \
+  -e '/^#define LUA_ROOT/s,".*,"/usr/",' \
   -e '/^#define LUA_CDIR/s,"lib,&'"${LIBDIRSUFFIX}"',' \
   src/luaconf.h