diff --git a/e17/ecore/ecore.conf b/e17/ecore/ecore.conf
index e51f4b849..d0b37cbb6 100644
--- a/e17/ecore/ecore.conf
+++ b/e17/ecore/ecore.conf
@@ -20,8 +20,10 @@ for x in evas job con ipc \
 done
 
 for x in libx11:x mesa:evas-gl; do
-	if pkginstalled ${x#*:}; then
-		var_append confopt " " "--enable-ecore-${x%:*}"
+	if pkginstalled ${x%:*}; then
+		var_append confopt " " "--enable-ecore-${x#*:}"
+	else
+		var_append confopt " " "--disable-ecore-${x#*:}"
 	fi
 done