diff --git a/lustre/utils/mount_lustre.c b/lustre/utils/mount_lustre.c
index e41a1c2ff110c67b72c2dabcb553fb72aa829b87..0dd13c61a3ca32e4a234a11199bb2bd2fe232eb1 100644
--- a/lustre/utils/mount_lustre.c
+++ b/lustre/utils/mount_lustre.c
@@ -583,7 +583,8 @@ int main(int argc, char *const argv[])
                 printf("mounting device %s at %s, flags=%#x options=%s\n",
                        source, target, flags, optcopy);
 
-        if (set_tunables(source, strlen(source)) && verbose)
+        if (!strstr(usource, ":/") && set_tunables(source, strlen(source)) &&
+            verbose)
                 fprintf(stderr, "%s: unable to set tunables for %s"
                                 " (may cause reduced IO performance)\n",
                                 argv[0], source);