diff --git a/src/xkb/XKBGAlloc.c b/src/xkb/XKBGAlloc.c
index 17d13be5..90ec2f9c 100644
--- a/src/xkb/XKBGAlloc.c
+++ b/src/xkb/XKBGAlloc.c
@@ -696,11 +696,11 @@ register XkbPropertyPtr prop;
     }
     prop= &geom->properties[geom->num_properties];
     prop->name= (char *)_XkbAlloc(strlen(name)+1);
-    if (!name)
+    if (!prop->name)
 	return NULL;
     strcpy(prop->name,name);
     prop->value= (char *)_XkbAlloc(strlen(value)+1);
-    if (!value) {
+    if (!prop->value) {
 	_XkbFree(prop->name);
 	prop->name= NULL;
 	return NULL;