diff --git a/lib/graphql/client.rb b/lib/graphql/client.rb
index 7741c08..aae2f12 100644
--- a/lib/graphql/client.rb
+++ b/lib/graphql/client.rb
@@ -403,7 +403,6 @@ def sliced_definitions(document_dependencies, doc, source_location:)
 
       doc.definitions.map do |node|
         deps = Set.new
-        definitions = document_dependencies.definitions.map { |x| [x.name, x] }.to_h
 
         queue = [node.name]
         while name = queue.shift