diff --git a/examples/c/calc/calc.y b/examples/c/calc/calc.y
index 1a6980fe..7757648d 100644
--- a/examples/c/calc/calc.y
+++ b/examples/c/calc/calc.y
@@ -34,7 +34,6 @@ input:
 
 line:
   '\n'
-  | 'a' 'a' 'a' 'a' 'a' 'a' 'a' 'a' 'a' 'a' 'a' 'a' 'a' 'a' 'a' 'a' { printf ("a\n"); }
 | expr '\n'  { printf ("%.10g\n", $1); }
 | error '\n' { yyerrok; }
 ;