diff --git a/src/futils.cpp b/src/futils.cpp
index e5292451..529d717a 100644
--- a/src/futils.cpp
+++ b/src/futils.cpp
@@ -4,6 +4,7 @@
 #include "futils.hpp"
 
 #include "config.h"
+#include "enforce.hpp"
 #include "error.hpp"
 
 // + standard includes