diff --git a/y2019/vision/debug_viewer.cc b/y2019/vision/debug_viewer.cc
index 14063c2..8ef67fa 100644
--- a/y2019/vision/debug_viewer.cc
+++ b/y2019/vision/debug_viewer.cc
@@ -166,7 +166,7 @@
     }
 
     // Check that our current results match possible solutions.
-    results = target_finder_.FilterResults(results, 0);
+    results = target_finder_.FilterResults(results, 0, draw_results_);
     if (draw_results_) {
       for (const IntermediateResult &res : results) {
         DrawTarget(res, {0, 255, 0});