diff --git a/src/plugins/condition/StyleRuleManager.js b/src/plugins/condition/StyleRuleManager.js
index 9bfb357e36..362886d0f6 100644
--- a/src/plugins/condition/StyleRuleManager.js
+++ b/src/plugins/condition/StyleRuleManager.js
@@ -115,6 +115,7 @@ export default class StyleRuleManager extends EventEmitter {
         if (this.stopProvidingTelemetry) {
             this.stopProvidingTelemetry();
         }
+        delete this.stopProvidingTelemetry;
         this.conditionSetIdentifier = undefined;
     }