diff --git a/configure b/configure
index 73a08f6b9..57bca469c 100755
--- a/configure
+++ b/configure
@@ -35,7 +35,7 @@ usage_with_default()
 default_coptflags()
 {
     if [ "$1" = 0 ]; then
-	echo ""
+	echo "-Og"
     fi
 }