diff --git a/tools/mesh-cfgtest.c b/tools/mesh-cfgtest.c
index fa0474f..9b68314 100644
--- a/tools/mesh-cfgtest.c
+++ b/tools/mesh-cfgtest.c
@@ -26,6 +26,7 @@
 #include <time.h>
 #include <unistd.h>
 #include <sys/stat.h>
+#include <limits.h> /* PATH_MAX */
 
 #include <ell/ell.h>