diff --git a/hls_2018/auto/auto_compile.c b/hls_2018/auto/auto_compile.c
index 66f672e29a097e52976ff062d92eb78e4f0ecf8c..d0589ddc4188ebf33907de7a14db1cc9dee1ca75 100755
--- a/hls_2018/auto/auto_compile.c
+++ b/hls_2018/auto/auto_compile.c
@@ -9,7 +9,7 @@ int main(void){
    char dir[64] = "../router_01";
 
    FILE *fp;
-   fp = fopen("b.txt", "r");
+   fp = fopen("q.txt", "r");
    if(fp == NULL){
       printf("File does not exist.\n");
       exit(1);