1 files changed, 1 insertions, 2 deletions
diff --git a/io.c b/io.c
index 59fd378618..9524894ea3 100644
--- a/io.c
+++ b/io.c
@@ -5037,6 +5037,7 @@ argf_alloc(VALUE klass)
     return argf;
 }
 
+#undef rb_argv
 #define filename          ARGF.filename
 #define current_file      ARGF.current_file
 #define gets_lineno       ARGF.gets_lineno
@@ -7244,8 +7245,6 @@ rb_get_argv(void)
     return rb_argv;
 }
 
-#undef rb_argv
-
 /*
  *  Class <code>IO</code> is the basis for all input and output in Ruby.
  *  An I/O stream may be <em>duplexed</em> (that is, bidirectional), and