diff --git a/mega/src/cli.rs b/mega/src/cli.rs
index 0cffcc849..e8f425883 100644
--- a/mega/src/cli.rs
+++ b/mega/src/cli.rs
@@ -96,6 +96,7 @@ fn cli() -> Command {
             Arg::new("config")
                 .short('c')
                 .long("config")
+                .value_parser(clap::value_parser!(PathBuf))
                 .help("Sets a config file work directory"),
         )
 }
diff --git a/mega/src/lib.rs b/mega/src/lib.rs
index 3ae7f75a0..d07186e5c 100644
--- a/mega/src/lib.rs
+++ b/mega/src/lib.rs
@@ -7,7 +7,8 @@ mod tests {
 
     #[test]
     fn test_cli() {
-        let args = "service http".split(' ').collect();
+        let config_path = "config.toml";
+        let args = vec!["-c", config_path, "service", "multi", "http"];
         cli::parse(Some(args)).expect("Failed to start http service");
     }
 }
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