diff --git a/draftlogs/6356_add.md b/draftlogs/6356_add.md
index 929da457d81..eb4281c4780 100644
--- a/draftlogs/6356_add.md
+++ b/draftlogs/6356_add.md
@@ -1 +1 @@
-- Add `sync` tickmode option [[#6356](https://github.com/plotly/plotly.js/pull/6356)]
\ No newline at end of file
+- Add `sync` tickmode option [[#6356](https://github.com/plotly/plotly.js/pull/6356), [#6443](https://github.com/plotly/plotly.js/pull/6443)]
\ No newline at end of file
diff --git a/src/plots/cartesian/dragbox.js b/src/plots/cartesian/dragbox.js
index 1e4b889c152..29b9067070a 100644
--- a/src/plots/cartesian/dragbox.js
+++ b/src/plots/cartesian/dragbox.js
@@ -729,7 +729,9 @@ function makeDragBox(gd, plotinfo, x, y, w, h, ns, ew) {
 
         function pushActiveAxIdsSynced(axList, axisType) {
             for(i = 0; i < axList.length; i++) {
-                if(!axList[i].fixedrange && axList[i][axisType]) {activeAxIds.push(axList[i][axisType]._id);}
+                var axListI = axList[i];
+                var axListIType = axListI[axisType];
+                if(!axListI.fixedrange && axListIType.tickmode === 'sync') activeAxIds.push(axListIType._id);
             }
         }