diff --git a/bb.c b/bb.c
index 95850ef..a394d00 100644
--- a/bb.c
+++ b/bb.c
@@ -27,2 +27,3 @@
 #include <aalib.h>
+#include <time.h>
 #include "bb.h"
diff --git a/main.c b/main.c
index 417ff62..c0648b4 100644
--- a/main.c
+++ b/main.c
@@ -23,2 +23,3 @@
 
+#include <ctype.h>
 #include <string.h>