diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c
index 8ee28406f23246fa47367570d0e2f31474ad9648..e0ded0161994930a7483930516ca6aaf9a0595ad 100644
--- a/src/storage/storage_driver.c
+++ b/src/storage/storage_driver.c
@@ -1856,10 +1856,6 @@ storageVolCreateXML(virStoragePoolPtr obj,
         goto cleanup;
     }
 
-    if (VIR_REALLOC_N(pool->volumes.objs,
-                      pool->volumes.count+1) < 0)
-        goto cleanup;
-
     if (!backend->createVol) {
         virReportError(VIR_ERR_NO_SUPPORT,
                        "%s", _("storage pool does not support volume "
@@ -1867,6 +1863,10 @@ storageVolCreateXML(virStoragePoolPtr obj,
         goto cleanup;
     }
 
+    if (VIR_REALLOC_N(pool->volumes.objs,
+                      pool->volumes.count+1) < 0)
+        goto cleanup;
+
     /* Wipe any key the user may have suggested, as volume creation
      * will generate the canonical key.  */
     VIR_FREE(voldef->key);