diff --git a/tests/mkfs-simple.c b/tests/mkfs-simple.c
index 9c0ebec..9e69aa4 100644
--- a/tests/mkfs-simple.c
+++ b/tests/mkfs-simple.c
@@ -28,10 +28,10 @@ static int make_image(const char *name, uint32_t size) {
 int main(int argc, char **argv) {
     int ret = 0;
 
-    ret += make_image("fat12-1300k.img", 1300 * 1024);
-    ret += make_image("fat12-1800k.img", 1800 * 1024);
-    ret += make_image("fat12-128k.img", 128 * 1024);
-    ret += make_image("fat12-16M.img", 16 * 1024 * 1024);
+    ret += make_image("build/fat12-1300k.img", 1300 * 1024);
+    ret += make_image("build/fat12-1800k.img", 1800 * 1024);
+    ret += make_image("build/fat12-128k.img", 128 * 1024);
+    ret += make_image("build/fat12-16M.img", 16 * 1024 * 1024);
 
     return ret;
 }
\ No newline at end of file