diff --git a/group.c b/group.c
index b37799c..3163a7a 100644
--- a/group.c
+++ b/group.c
@@ -28,7 +28,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <stdio.h>
 #include <unistd.h>
 #include <time.h>