diff --git a/lib/graphql_devise/rails/routes.rb b/lib/graphql_devise/rails/routes.rb
index 1536f511..75f336ba 100644
--- a/lib/graphql_devise/rails/routes.rb
+++ b/lib/graphql_devise/rails/routes.rb
@@ -67,7 +67,7 @@ def mount_graphql_devise_for(resource, options = {})
       end
 
       if (prepared_mutations.present? || additional_mutations.present?) &&
-         (Gem::Version.new(GraphQL::VERSION) <= Gem::Version.new('1.10.0') || GraphqlDevise::Schema.mutation.nil?)
+         (Gem::Version.new(GraphQL::VERSION) < Gem::Version.new('1.10.0') || GraphqlDevise::Schema.mutation.nil?)
         GraphqlDevise::Schema.mutation(GraphqlDevise::Types::MutationType)
       end