diff --git a/src/conffile.h b/src/conffile.h
index 6b35d0b0..ed145027 100644
--- a/src/conffile.h
+++ b/src/conffile.h
@@ -3,6 +3,7 @@
 #define __CONFFILE_H__
 
 #include <sys/types.h>
+#include <stdint.h>
 
 #include <confuse.h>