diff --git a/lustre/tests/acceptance-small.sh b/lustre/tests/acceptance-small.sh
index 9e5be2428b11174ec92ba3a25e1d5fcbc31f4185..0131c108d19fc60a7ed8fbbd2b0821e5c7776b1a 100755
--- a/lustre/tests/acceptance-small.sh
+++ b/lustre/tests/acceptance-small.sh
@@ -268,6 +268,7 @@ for NAME in $CONFIGS; do
 		LFSCK="done"
 	fi
 
+	[ "$NETTYPE" = "tcp" ] || LIBLUSTRE=no # bug 15660
 	if [ "$LIBLUSTRE" != "no" ]; then
 	        title liblustre
 		assert_env MGSNID MOUNT2