diff --git a/src/daemon/internal.h b/src/daemon/internal.h
index 2022b77e..154021ed 100644
--- a/src/daemon/internal.h
+++ b/src/daemon/internal.h
@@ -40,6 +40,7 @@
 #include <signal.h>
 
 #include "config.h"
+#include "plibc.h"
 #include "microhttpd.h"
 
 #ifndef MINGW