diff --git a/doc/ChangeLog-0.06_to_0.52 b/doc/ChangeLog/ChangeLog-0.06_to_0.52
similarity index 100%
rename from doc/ChangeLog-0.06_to_0.52
rename to doc/ChangeLog/ChangeLog-0.06_to_0.52
diff --git a/doc/ChangeLog-0.50_to_0.60 b/doc/ChangeLog/ChangeLog-0.50_to_0.60
similarity index 100%
rename from doc/ChangeLog-0.50_to_0.60
rename to doc/ChangeLog/ChangeLog-0.50_to_0.60
diff --git a/doc/ChangeLog-0.60_to_1.1 b/doc/ChangeLog/ChangeLog-0.60_to_1.1
similarity index 100%
rename from doc/ChangeLog-0.60_to_1.1
rename to doc/ChangeLog/ChangeLog-0.60_to_1.1
diff --git a/doc/ChangeLog-1.8.0 b/doc/ChangeLog/ChangeLog-1.8.0
similarity index 100%
rename from doc/ChangeLog-1.8.0
rename to doc/ChangeLog/ChangeLog-1.8.0
diff --git a/doc/ChangeLog-1.9.3 b/doc/ChangeLog/ChangeLog-1.9.3
similarity index 100%
rename from doc/ChangeLog-1.9.3
rename to doc/ChangeLog/ChangeLog-1.9.3
diff --git a/doc/ChangeLog-2.0.0 b/doc/ChangeLog/ChangeLog-2.0.0
similarity index 100%
rename from doc/ChangeLog-2.0.0
rename to doc/ChangeLog/ChangeLog-2.0.0
diff --git a/doc/ChangeLog-2.1.0 b/doc/ChangeLog/ChangeLog-2.1.0
similarity index 100%
rename from doc/ChangeLog-2.1.0
rename to doc/ChangeLog/ChangeLog-2.1.0
diff --git a/doc/ChangeLog-2.2.0 b/doc/ChangeLog/ChangeLog-2.2.0
similarity index 100%
rename from doc/ChangeLog-2.2.0
rename to doc/ChangeLog/ChangeLog-2.2.0
diff --git a/doc/ChangeLog-2.3.0 b/doc/ChangeLog/ChangeLog-2.3.0
similarity index 100%
rename from doc/ChangeLog-2.3.0
rename to doc/ChangeLog/ChangeLog-2.3.0
diff --git a/doc/ChangeLog-2.4.0 b/doc/ChangeLog/ChangeLog-2.4.0
similarity index 100%
rename from doc/ChangeLog-2.4.0
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diff --git a/doc/ChangeLog-YARV b/doc/ChangeLog/ChangeLog-YARV
similarity index 100%
rename from doc/ChangeLog-YARV
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diff --git a/spec/ruby/core/array/sum_spec.rb b/spec/ruby/core/array/sum_spec.rb
index 8ca8353a67..34635d9bc0 100644
--- a/spec/ruby/core/array/sum_spec.rb
+++ b/spec/ruby/core/array/sum_spec.rb
@@ -10,7 +10,7 @@ describe "Array#sum" do
   end
 
   # https://bugs.ruby-lang.org/issues/12217
-  # https://github.com/ruby/ruby/blob/master/doc/ChangeLog-2.4.0#L6208-L6214
+  # https://github.com/ruby/ruby/blob/master/doc/ChangeLog/ChangeLog-2.4.0#L6208-L6214
   it "uses Kahan's compensated summation algorithm for precise sum of float numbers" do
     floats = [2.7800000000000002, 5.0, 2.5, 4.44, 3.89, 3.89, 4.44, 7.78, 5.0, 2.7800000000000002, 5.0, 2.5]
     naive_sum = floats.reduce { |sum, e| sum + e }
diff --git a/spec/ruby/core/enumerable/sum_spec.rb b/spec/ruby/core/enumerable/sum_spec.rb
index fc173e4173..2eb74db6ac 100644
--- a/spec/ruby/core/enumerable/sum_spec.rb
+++ b/spec/ruby/core/enumerable/sum_spec.rb
@@ -40,7 +40,7 @@ describe 'Enumerable#sum' do
   end
 
   # https://bugs.ruby-lang.org/issues/12217
-  # https://github.com/ruby/ruby/blob/master/doc/ChangeLog-2.4.0#L6208-L6214
+  # https://github.com/ruby/ruby/blob/master/doc/ChangeLog/ChangeLog-2.4.0#L6208-L6214
   it "uses Kahan's compensated summation algorithm for precise sum of float numbers" do
     floats = [2.7800000000000002, 5.0, 2.5, 4.44, 3.89, 3.89, 4.44, 7.78, 5.0, 2.7800000000000002, 5.0, 2.5].to_enum
     naive_sum = floats.reduce { |sum, e| sum + e }