diff --git a/src/main.rs b/src/main.rs
index 3d4acef..b2bb915 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -63,11 +63,11 @@ pub struct Cli {
 fn main() {
     let mut cli = cli_parse();
     let mut sources: Vec<Box<dyn DataSource>> = Vec::new();
-    if !cli.data_source.is_empty() && cli.data_source[0] != "-" {
+    if !cli.data_source.is_empty() && !cli.data_source.contains(&"-".to_string()) {
         for data_source in &cli.data_source {
             let data_source: PathBuf = PathBuf::from(data_source);
             if data_source.is_dir() {
-                warn!("Not a file {:?}, skipping", data_source);
+                warn!("'{:?}' is a directory and cannot be dumped, skipping", data_source);
                 // std::process::exit(1);
                 continue;
             }