1 files changed, 1 insertions, 4 deletions
diff --git a/mrbgems/mruby-proc-ext/src/proc.c b/mrbgems/mruby-proc-ext/src/proc.c
index c9041ec75..1627ee474 100644
--- a/mrbgems/mruby-proc-ext/src/proc.c
+++ b/mrbgems/mruby-proc-ext/src/proc.c
@@ -72,10 +72,7 @@ mrb_kernel_proc(mrb_state *mrb, mrb_value self)
 {
   mrb_value blk;
 
-  mrb_get_args(mrb, "&", &blk);
-  if (mrb_nil_p(blk)) {
-    mrb_raise(mrb, E_ARGUMENT_ERROR, "tried to create Proc object without a block");
-  }
+  mrb_get_args(mrb, "&!", &blk);
 
   return blk;
 }