1 files changed, 2 insertions, 2 deletions
diff --git a/defaults.h b/defaults.h
index f79fc9a..ed6fabd 100644
--- a/defaults.h
+++ b/defaults.h
@@ -19,8 +19,8 @@
 #ifndef DEFAULTS_H
 #define DEFAULTS_H
 
-#include "bool.h"
-#include <stdlib.h>
+#include "bool.h" /* boolean types */
+#include <stdlib.h> /* NULL */
 
 char* _DEFAULT_GOV;
 char* _DEFAULT_FREQ;