diff --git a/lib/plugins/influxdb/send-annotationV2.js b/lib/plugins/influxdb/send-annotationV2.js
index de3ab986b..3f0adcc62 100644
--- a/lib/plugins/influxdb/send-annotationV2.js
+++ b/lib/plugins/influxdb/send-annotationV2.js
@@ -44,7 +44,7 @@ export function sendV2(
   ];
 
   if (options.slug) {
-    tags.push(options.slug);
+    tags.push(`slug=${options.slug}`);
   }
 
   const message = getAnnotationMessage(