diff --git a/lib/sub_diff/builder.rb b/lib/sub_diff/builder.rb
index ef48239..b569ad6 100644
--- a/lib/sub_diff/builder.rb
+++ b/lib/sub_diff/builder.rb
@@ -6,7 +6,9 @@ def initialize(string, type)
     end
 
     def diff(*args, &block)
-      build { adapter.diff(*args, &block) }
+      build_diff_collection do
+        adapter.diff(*args, &block)
+      end
     end
 
     def push(*args)
@@ -21,7 +23,7 @@ def push(*args)
 
     attr_reader :string, :type
 
-    def build(&block)
+    def build_diff_collection(&block)
       collection.reset(&block).dup
     end