diff --git a/spec/rubyspec/library/delegate/delegator/eql_spec.rb b/spec/rubyspec/library/delegate/delegator/eql_spec.rb
index 7d101eb262..fd6824ec55 100644
--- a/spec/rubyspec/library/delegate/delegator/eql_spec.rb
+++ b/spec/rubyspec/library/delegate/delegator/eql_spec.rb
@@ -2,34 +2,45 @@ require File.expand_path('../../../../spec_helper', __FILE__)
 require File.expand_path('../../fixtures/classes', __FILE__)
 
 describe "Delegator#eql?" do
-  it "returns true when compared with same delegator" do
-    base = mock('base')
-    delegator = DelegateSpecs::Delegator.new(base)
-
-    delegator.eql?(delegator).should be_true
+  ruby_version_is ""..."2.5" do
+    it "is delegated" do
+      base = mock('base')
+      delegator = DelegateSpecs::Delegator.new(base)
+      base.should_receive(:eql?).with(42).and_return(:foo)
+      delegator.eql?(42).should == :foo
+    end
   end
 
-  it "returns true when compared with the inner object" do
-    base = mock('base')
-    delegator = DelegateSpecs::Delegator.new(base)
+  ruby_version_is "2.5" do
+    it "returns true when compared with same delegator" do
+      base = mock('base')
+      delegator = DelegateSpecs::Delegator.new(base)
 
-    delegator.eql?(base).should be_true
-  end
+      delegator.eql?(delegator).should be_true
+    end
 
-  it "returns false when compared with the delegator with other object" do
-    base = mock('base')
-    other = mock('other')
-    delegator0 = DelegateSpecs::Delegator.new(base)
-    delegator1 = DelegateSpecs::Delegator.new(other)
+    it "returns true when compared with the inner object" do
+      base = mock('base')
+      delegator = DelegateSpecs::Delegator.new(base)
 
-    delegator0.eql?(delegator1).should be_false
-  end
+      delegator.eql?(base).should be_true
+    end
 
-  it "returns false when compared with the other object" do
-    base = mock('base')
-    other = mock('other')
-    delegator = DelegateSpecs::Delegator.new(base)
+    it "returns false when compared with the delegator with other object" do
+      base = mock('base')
+      other = mock('other')
+      delegator0 = DelegateSpecs::Delegator.new(base)
+      delegator1 = DelegateSpecs::Delegator.new(other)
 
-    delegator.eql?(other).should be_false
+      delegator0.eql?(delegator1).should be_false
+    end
+
+    it "returns false when compared with the other object" do
+      base = mock('base')
+      other = mock('other')
+      delegator = DelegateSpecs::Delegator.new(base)
+
+      delegator.eql?(other).should be_false
+    end
   end
 end