diff --git a/lib/steep/server/interaction_worker.rb b/lib/steep/server/interaction_worker.rb
index d816693ad..7ec19a7ff 100644
--- a/lib/steep/server/interaction_worker.rb
+++ b/lib/steep/server/interaction_worker.rb
@@ -394,6 +394,8 @@ def process_signature_help(job)
             end
           end
         end
+      rescue Parser::SyntaxError
+        # Ignore syntax error
       end
     end
   end