diff --git a/eval.c b/eval.c
index a56f115d53..61850f5597 100644
--- a/eval.c
+++ b/eval.c
@@ -837,7 +837,7 @@ rb_block_given_p(void)
 }
 
 /*!  Determines if the current method is an interator.
- * 
+ *
  * An alias of rb_block_given_p().
  * \ingroup defmethod
  */