diff --git a/dashboard.json b/dashboard.json
index a9031b6..4528a10 100644
--- a/dashboard.json
+++ b/dashboard.json
@@ -173,7 +173,7 @@
             "uid": "${DS_PROMETHEUS}"
           },
           "editorMode": "code",
-          "expr": "sum(rate(smokeping_response_duration_seconds_bucket{host=\"${target:raw}\"}[1m])) by (le)",
+          "expr": "sum(rate(smokeping_response_duration_seconds_bucket{host=\"${target:raw}\"}[$__rate_interval])) by (le)",
           "format": "heatmap",
           "intervalFactor": 1,
           "legendFormat": "{{le}}",
@@ -549,4 +549,4 @@
   "uid": "i5aRaLaik",
   "version": 12,
   "weekStart": ""
-}
\ No newline at end of file
+}