diff --git a/resistormaid.c b/resistormaid.c
index af955c6..6254d03 100644
--- a/resistormaid.c
+++ b/resistormaid.c
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>