diff --git a/du1/program.c b/du1/program.c
index 846a65d..a658a2b 100644
--- a/du1/program.c
+++ b/du1/program.c
@@ -1,6 +1,5 @@
 #include <stdio.h>
 #include <stdlib.h>
-#include <assert.h>
 #include <string.h>
 #define LINE_SIZE 100