diff --git a/lib/sinatra/base.rb b/lib/sinatra/base.rb
index f345bd84..ba330a46 100644
--- a/lib/sinatra/base.rb
+++ b/lib/sinatra/base.rb
@@ -1222,6 +1222,10 @@ module Sinatra
 
       attr_reader :routes, :filters, :templates, :errors
 
+      def callers_to_ignore
+        CALLERS_TO_IGNORE
+      end
+
       # Removes all routes, filters, middleware and extension hooks from the
       # current class (not routes/filters/... defined by its superclass).
       def reset!
@@ -1788,7 +1792,7 @@ module Sinatra
       def cleaned_caller(keep = 3)
         caller(1)
           .map! { |line| line.split(/:(?=\d|in )/, 3)[0, keep] }
-          .reject { |file, *_| CALLERS_TO_IGNORE.any? { |pattern| file =~ pattern } }
+          .reject { |file, *_| callers_to_ignore.any? { |pattern| file =~ pattern } }
       end
     end