diff --git a/src/storage/storage_backend_rbd.c b/src/storage/storage_backend_rbd.c
index 315bef2fee..d3056287df 100644
--- a/src/storage/storage_backend_rbd.c
+++ b/src/storage/storage_backend_rbd.c
@@ -620,7 +620,7 @@ virStorageBackendRBDGetVolNames(virStorageBackendRBDStatePtr ptr)
     size_t i;
 
     while (true) {
-        if (VIR_ALLOC_N(images, nimages) < 0)
+        if (VIR_REALLOC_N(images, nimages) < 0)
             goto error;
 
         rc = rbd_list2(ptr->ioctx, images, &nimages);