diff --git a/src/cpu/cpu_x86.c b/src/cpu/cpu_x86.c
index c54b09396f99b5fbb38f0bba2106184e467b5051..4dd10fb5615758a3904a21501548bf77c4675427 100644
--- a/src/cpu/cpu_x86.c
+++ b/src/cpu/cpu_x86.c
@@ -1293,9 +1293,15 @@ x86ModelParse(xmlXPathContextPtr ctxt,
               void *data)
 {
     virCPUx86MapPtr map = data;
-    virCPUx86ModelPtr model;
+    virCPUx86ModelPtr model = NULL;
     int ret = -1;
 
+    if (x86ModelFind(map, name)) {
+        virReportError(VIR_ERR_INTERNAL_ERROR,
+                       _("Multiple definitions of CPU model '%s'"), name);
+        goto cleanup;
+    }
+
     if (!(model = x86ModelNew()))
         goto cleanup;