diff --git a/ext/sinatra/indifferent_hash.rb b/ext/sinatra/indifferent_hash.rb
new file mode 100644
index 00000000..ad8fce66
--- /dev/null
+++ b/ext/sinatra/indifferent_hash.rb
@@ -0,0 +1,5 @@
+class Sinatra::IndifferentHash
+  def not_an_integer?
+    true
+  end
+end
\ No newline at end of file