diff --git a/tests/tests.cpp b/tests/tests.cpp
index 936448a6..75d724de 100644
--- a/tests/tests.cpp
+++ b/tests/tests.cpp
@@ -330,6 +330,7 @@ test_mknod_ff()
 
   branches.from_string("/tmp/a:/tmp/b");
 
+  mknod(branches,"fifo",S_IFIFO|0777,0);
 }
 
 TEST_LIST =