diff --git a/tests/tests.cpp b/tests/tests.cpp
index 0f732ec3..4ab58afa 100644
--- a/tests/tests.cpp
+++ b/tests/tests.cpp
@@ -6,6 +6,8 @@
 
 #include "func_mknod_ff.hpp"
 
+#include "fs_exists.hpp"
+
 
 void
 test_nop()