diff --git a/ultramodern/src/pfs.cpp b/ultramodern/src/pfs.cpp
index eb68d14..c731956 100644
--- a/ultramodern/src/pfs.cpp
+++ b/ultramodern/src/pfs.cpp
@@ -15,7 +15,7 @@ inline std::filesystem::path pfs_header_path() {
 }
 
 inline std::filesystem::path pfs_file_path(size_t file_no) {
-    const auto filename = "controllerpak_file_" + std::to_string(file_no) + ".bin", file_no);
+    const auto filename = "controllerpak_file_" + std::to_string(file_no) + ".bin";
     return ultramodern::get_save_base_path() / filename;
 }