diff --git a/xontrib/pipeliner/__init__.py b/xontrib/pipeliner/__init__.py
index a0f7e4d..bf1e3ce 100644
--- a/xontrib/pipeliner/__init__.py
+++ b/xontrib/pipeliner/__init__.py
@@ -55,7 +55,7 @@ def _pl(args, stdin, stdout):
         try:
             res = fn(line.rstrip(os.linesep), num)
         except:
-            print_color('{YELLOW}' + f'Error line {num+1}: {line}', file=sys.stderr)
+            print_color('{YELLOW}' + f'Error line {num+1}: {line!r}', file=sys.stderr)
             print_color('{YELLOW}' + str(traceback.format_exc()), file=sys.stderr)
             return
         num += 1