diff --git a/src/spectator/dsl/groups.cr b/src/spectator/dsl/groups.cr
index bce9215..227c224 100644
--- a/src/spectator/dsl/groups.cr
+++ b/src/spectator/dsl/groups.cr
@@ -24,11 +24,11 @@ module Spectator
             {{what}}
           end
 
-          def subject(*args)
+          def _spectator_implicit_subject(*args)
             described_class.new(*args)
           end
         {% else %}
-          def subject
+          def _spectator_implicit_subject(*args)
             {{what}}
           end
         {% end %}
diff --git a/src/spectator_test.cr b/src/spectator_test.cr
index 364d79e..ca0e2e0 100644
--- a/src/spectator_test.cr
+++ b/src/spectator_test.cr
@@ -6,6 +6,14 @@ require "./spectator/dsl"
 class SpectatorTest
   include ::Spectator::DSL
 
+  def _spectator_implicit_subject
+    nil
+  end
+
+  def subject
+    _spectator_implicit_subject
+  end
+
   def initialize(@spectator_test_values : ::Spectator::TestValues)
   end
 end