diff --git a/grafana/default-alerts/memory.yml b/grafana/default-alerts/memory.yml
index b4b585c5..91f5fdfe 100644
--- a/grafana/default-alerts/memory.yml
+++ b/grafana/default-alerts/memory.yml
@@ -86,7 +86,7 @@ groups:
           execErrState: Error
           for: 5m
           annotations:
-            summary: memory usage is dangerously high at {{ humanizePercentage values.B.Value }}.
+            summary: memory usage is dangerously high at {{ humanizePercentage $values.B.Value }}.
           labels:
             severity: critical
           isPaused: false