diff --git a/c_version/sudk_stack.c b/c_version/sudk_stack.c
index e720ada..fc76b34 100644
--- a/c_version/sudk_stack.c
+++ b/c_version/sudk_stack.c
@@ -3,7 +3,6 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <string.h>
 #include <sys/types.h>
 
 static inline void Print_Clear() { printf("\x1b\x5b\x48\x1b\x5b\x32\x4a"); }