diff --git a/src/client/distren.c b/src/client/distren.c
--- a/src/client/distren.c
+++ b/src/client/distren.c
@@ -29,6 +29,8 @@
 #include "options.h"
 #include "execio.h"
 
+#include <distren.h>
+
 #include <stdio.h> /* sprintf, printf */
 #include <stdlib.h> /* malloc, free */
 #include <unistd.h> /* getopt */
diff --git a/src/client/distren.h b/src/client/distren.h
--- a/src/client/distren.h
+++ b/src/client/distren.h
@@ -20,6 +20,10 @@
 #ifndef DISTREN_H
 #define DISTREN_H 1
 
+/*
+  Public API for DistRen
+ */
+
 #include <stddef.h> /* size_t */
 
 typedef struct distren *distren_t;