diff --git a/platform/features/plot/src/PlotController.js b/platform/features/plot/src/PlotController.js
index ef53efd87f..6449e0f3a1 100644
--- a/platform/features/plot/src/PlotController.js
+++ b/platform/features/plot/src/PlotController.js
@@ -113,8 +113,20 @@ define(
                 }
             }
 
+            // Release the current subscription (called when scope is destroyed)
+            function releaseSubscription() {
+                if (subscription) {
+                    subscription.unsubscribe();
+                    subscription = undefined;
+                }
+            }
+
+            // Subscribe to telemetry when a domain object becomes available
             $scope.$watch('domainObject', subscribe);
 
+            // Unsubscribe when the plot is destroyed
+            $scope.$on("$destroy", releaseSubscription);
+
             return {
                 /**
                  * Get the color (as a style-friendly string) to use