diff --git a/write_bw_postlist.c b/write_bw_postlist.c
index 0349c40..e2e191f 100644
--- a/write_bw_postlist.c
+++ b/write_bw_postlist.c
@@ -738,8 +743,8 @@ int main(int argc, char *argv[])
 	if (!ctx)
 		return 1;
 
-	my_dest  = malloc(sizeof(struct pingpong_dest)*user_param.num_of_qps);
-	rem_dest = malloc(sizeof(struct pingpong_dest)*user_param.num_of_qps);
+	my_dest  = calloc(user_param.num_of_qps, sizeof(struct pingpong_dest));
+	rem_dest = calloc(user_param.num_of_qps, sizeof(struct pingpong_dest));
     if (!my_dest || !rem_dest) {
 		perror("malloc my_dest or rem_dest");
 		return 1;