diff --git a/mkmirrortree b/mkmirrortree
index ea877fb..901a234 100755
--- a/mkmirrortree
+++ b/mkmirrortree
@@ -7,20 +7,21 @@ cd "$MIRROR"
 echo `pwd`
 
 for DIR in `ls -A $MIRROR/mageia/distrib`
-do	
-	for ARCH in $ARCHLIST;do
-		if [ "$ARCH" = "SRPMS" ]; then
-			MEDIA="";
-		else
-			MEDIA="/media"
-		fi
-		for k in $DEPOT; do
-			echo "./mageia/lalis/$DIR/$ARCH$MEDIA/core/$k"
-			mkdir -p "./mageia/lalis/$DIR/$ARCH$MEDIA/core/$k"
-			if ! [ -z "$MEDIA" ]; then
-				echo "generation des medias"
-				mkdir -p "./mageia/lalis/$DIR/$ARCH$MEDIA/media_info"
-				printf "[media_info]
+do
+	if [ -d "$DIR" ]; then
+		for ARCH in $ARCHLIST;do
+			if [ "$ARCH" = "SRPMS" ]; then
+				MEDIA="";
+			else
+				MEDIA="/media"
+			fi
+			for k in $DEPOT; do
+				echo "./lalis/$DIR/$ARCH$MEDIA/core/$k"
+				mkdir -p "./lalis/$DIR/$ARCH$MEDIA/core/$k"
+				if ! [ -z "$MEDIA" ]; then
+					echo "generation des medias"
+					mkdir -p "./lalis/$DIR/$ARCH$MEDIA/media_info"
+					printf "[media_info]
 version=$DIR
 mediacfg_version=2
 branch=Official
@@ -74,8 +75,9 @@ name=Core Updates Sources
 noauto=1
 rpms=core/updates
 ">"./mageia/lalis/$DIR/$ARCH$MEDIA/media_info/media.cfg"
-			fi
-			gendistrib --nobadrpm --blind --skipmissingdir "./mageia/lalis/$DIR/$ARCH$MEDIA/core/$k"
+				fi
+				gendistrib --nobadrpm --blind --skipmissingdir "./mageia/lalis/$DIR/$ARCH$MEDIA/core/$k"
+			done
 		done
-	done
+	fi
 done