diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index d83d84fcf5..6df0885669 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -1564,7 +1564,7 @@ virStorageFileGetNPIVKey(const char *path,
     return ret;
 }
 #else
-int virStorageFileGetNPIVKey(const char *path,
+int virStorageFileGetNPIVKey(const char *path ATTRIBUTE_UNUSED,
                              char **key ATTRIBUTE_UNUSED)
 {
     return -1;