diff --git a/buffer.c b/buffer.c
index c94deb1..7263a5e 100644
--- a/buffer.c
+++ b/buffer.c
@@ -6,7 +6,6 @@
  */
 #include <stdarg.h>
 #include <ctype.h>
-#include <string.h>
 #include <assert.h>
 #include <string.h>
 #include <stdio.h>