diff --git a/mrbgems/mruby-compiler/core/parse.y b/mrbgems/mruby-compiler/core/parse.y
index f726fc004..6e755155f 100644
--- a/mrbgems/mruby-compiler/core/parse.y
+++ b/mrbgems/mruby-compiler/core/parse.y
@@ -1015,14 +1015,14 @@ new_op_asgn(parser_state *p, node *a, mrb_sym op, node *b)
 static node*
 new_imaginary(parser_state *p, node *imaginary)
 {
-  return new_call(p, new_const(p, MRB_SYM_2(p->mrb, Kernel)), MRB_SYM_2(p->mrb, Complex),
-                  new_callargs(p, list2(list3((node*)NODE_INT, (node*)strdup("0"), nint(10)), imaginary), 0, 0), '.');
+  return new_fcall(p, MRB_SYM_2(p->mrb, Complex),
+                  new_callargs(p, list2(list3((node*)NODE_INT, (node*)strdup("0"), nint(10)), imaginary), 0, 0));
 }
 
 static node*
 new_rational(parser_state *p, node *rational)
 {
-  return new_call(p, new_const(p, MRB_SYM_2(p->mrb, Kernel)), MRB_SYM_2(p->mrb, Rational), new_callargs(p, list1(rational), 0, 0), '.');
+  return new_fcall(p, MRB_SYM_2(p->mrb, Rational), new_callargs(p, list1(rational), 0, 0));
 }
 
 /* (:int . i) */