diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index bb827e26eba50bd2aee81128932504e63f45d905..26b7fe1187b4ec960e97ff29f44a31cf767e8baa 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -2626,7 +2626,7 @@ virStorageSourceNewFromBackingRelative(virStorageSourcePtr parent,
         return NULL;
 
     /* store relative name */
-    if (VIR_STRDUP(def->relPath, parent->backingStoreRaw) < 0)
+    if (VIR_STRDUP(def->relPath, rel) < 0)
         return NULL;
 
     if (!(dirname = mdir_name(parent->path))) {