diff --git a/src/cpu/cpu_x86.c b/src/cpu/cpu_x86.c
index 978a60c90a6fdf5a87f5db3d394041c04905f445..55b55da784036c32d4438a76c7bdc93da645a043 100644
--- a/src/cpu/cpu_x86.c
+++ b/src/cpu/cpu_x86.c
@@ -822,7 +822,8 @@ x86DataToCPU(const virCPUx86Data *data,
         for (blocker = hvModel->blockers; *blocker; blocker++) {
             if ((feature = x86FeatureFind(map, *blocker)) &&
                 !x86DataIsSubset(&copy, &feature->data))
-                x86DataAdd(&modelData, &feature->data);
+                if (x86DataAdd(&modelData, &feature->data) < 0)
+                    goto error;
         }
     }