1 files changed, 2 insertions, 0 deletions

diff --git a/main.c b/main.c
index 27dc706..0f9370c 100644
--- a/main.c
+++ b/main.c
@@ -1,5 +1,7 @@
 #include <stdio.h>
+#include <ctype.h>
 #include <cs50.h>
+#include <string.h>
 
 int main(void)
 {