diff --git a/include/dectmon.h b/include/dectmon.h
index e3d9aa1..8cada3e 100644
--- a/include/dectmon.h
+++ b/include/dectmon.h
@@ -2,6 +2,7 @@
 #define _DECTMON_H
 
 #include <stdbool.h>
+#include <stdint.h>
 #include <list.h>
 #include <dect/auth.h>