diff --git a/substrate/core/cli/src/lib.rs b/substrate/core/cli/src/lib.rs
index 80d457c5b8..d720e45ae9 100644
--- a/substrate/core/cli/src/lib.rs
+++ b/substrate/core/cli/src/lib.rs
@@ -539,7 +539,7 @@ fn init_logger(pattern: &str) {
 			// duplicate INFO/WARN output to console
 			println!("{}", output);
 		}
-		write!(buf, "{}", output)
+		writeln!(buf, "{}", output)
 	});
 
 	builder.init();