diff --git a/bin/colorizer-ob b/bin/colorizer-ob
index 2b21e18..5a1f139 100755
--- a/bin/colorizer-ob
+++ b/bin/colorizer-ob
@@ -149,8 +149,7 @@ case "$LANG" in
 esac
 
 
-
-if [ -f "$THEMERC" ]; then
+if [[ -f "$THEMERC" ]] && [[ "$OBTHEME" = "MBcolor"* ]]; then
     if [ ! -f "${THEMERC}.bak" ]; then
         cp ${THEMERC} ${THEMERC}.bak
         #check if lines, and add missing