diff --git a/bacon/script.py b/bacon/script.py
index b31f0c2..d9a3102 100644
--- a/bacon/script.py
+++ b/bacon/script.py
@@ -22,7 +22,7 @@ class SyntaxErrorListener(ErrorListener):
     """An error listener that raises SyntaxError exceptions."""
 
     def syntaxError(self, recognizer, offendingSymbol, line, column, msg, e):
-        raise SyntaxError("line {}:{} {}".format(line, column, msg))
+        raise SyntaxError(f"line {line}:{column} {msg}")
 
 
 def load_config(file: str = 'server.cfg') -> Dict[int, object]: