diff --git a/lib/propshaft/server.rb b/lib/propshaft/server.rb
index 6f877115..98e4c401 100644
--- a/lib/propshaft/server.rb
+++ b/lib/propshaft/server.rb
@@ -47,6 +47,8 @@ def extract_path_and_digest(env)
     end
 
     def execute_cache_sweeper_if_updated
-      @assembly.load_path.cache_sweeper.execute_if_updated
+      if @assembly.config.sweep_cache
+        @assembly.load_path.cache_sweeper.execute_if_updated
+      end
     end
 end