diff --git a/src/main.rs b/src/main.rs
index 679cfc8..9f0307c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -42,8 +42,8 @@ struct Args {
 }
 
 fn get_file_list(dir_path: &str, wildcard: &str) -> Vec<String> {
-    let pattern = format!("{}/{}", dir_path, wildcard);
-    let dir_entries: Vec<Result<PathBuf, _>> = glob(&pattern).unwrap().collect();
+    let pattern = Path::new(dir_path).join(wildcard);
+    let dir_entries: Vec<Result<PathBuf, _>> = glob(&pattern.to_string_lossy()).unwrap().collect();
     dir_entries
         .into_iter()
         .filter_map(|entry| entry.ok())
@@ -137,10 +137,10 @@ fn full_name_test() {
 
 #[test]
 fn file_list_test() {
-    const DIRECTORY: &str = "src";
-    const WILDCARD: &str = "*.rs";
+    const DIRECTORY: &str = ".";
+    const WILDCARD: &str = "*.toml";
 
-    assert_eq!(get_file_list(DIRECTORY, WILDCARD), vec!["main.rs"]);
+    assert_eq!(get_file_list(DIRECTORY, WILDCARD), vec!["Cargo.toml"]);
 }
 
 #[test]