Negative RBOOL usage

1 files changed, 1 insertions, 1 deletions

diff --git a/proc.c b/proc.c
index 6cdd7bd836..ab6cce8fb8 100644
--- a/proc.c
+++ b/proc.c
@@ -1604,7 +1604,7 @@ respond_to_missing_p(VALUE klass, VALUE obj, VALUE sym, int scope)
 
     if (obj == Qundef) return 0;
     if (rb_method_basic_definition_p(klass, rmiss)) return 0;
-    return RTEST(rb_funcall(obj, rmiss, 2, sym, scope ? Qfalse : Qtrue));
+    return RTEST(rb_funcall(obj, rmiss, 2, sym, RBOOL(!scope)));
 }