1 files changed, 1 insertions, 1 deletions
diff --git a/complex.c b/complex.c
index 214d3a24ca..67422572df 100644
--- a/complex.c
+++ b/complex.c
@@ -377,7 +377,7 @@ nucomp_real_check(VALUE num)
 	break;
       default:
 	if (!k_numeric_p(num) || !f_real_p(num))
-	    rb_raise(rb_eArgError, "not a real");
+	    rb_raise(rb_eTypeError, "not a real");
     }
 }