diff --git a/test_swap.c b/test_swap.c
index 581fd3a..bf26d9e 100644
--- a/test_swap.c
+++ b/test_swap.c
@@ -7,7 +7,6 @@
 #include <unistd.h>
 #include <string.h>
 #include <sys/time.h>
-#include <openssl/md5.h>
 
 #define SIZE 500*1024*1024
 #define PAGE_SIZE 4096          // 4KB