diff --git a/component/extracted_alerts/master/collector_prometheus_alerts.yaml b/component/extracted_alerts/master/collector_prometheus_alerts.yaml
index 88abe1b..40f0c36 100644
--- a/component/extracted_alerts/master/collector_prometheus_alerts.yaml
+++ b/component/extracted_alerts/master/collector_prometheus_alerts.yaml
@@ -91,7 +91,7 @@ spec:
         summary: "Detected consuming too much node disk on $labels.hostname host"
       expr: |
         (label_replace(sum by(hostname) (vector_buffer_byte_size{component_kind='sink', buffer_type='disk'}), 'instance', '$1', 'hostname', '(.*)') 
-        / on(instance) group_left() sum by(instance) (node_filesystem_size_bytes{mountpoint='/var'})) * 100  > 0.15
+        / on(instance) group_left() sum by(instance) (node_filesystem_size_bytes{mountpoint='/var'})) * 100  > 15
       for: 5m
       labels:
         service: collector
diff --git a/tests/golden/master/openshift4-logging/openshift4-logging/60_collector_alerts.yaml b/tests/golden/master/openshift4-logging/openshift4-logging/60_collector_alerts.yaml
index 140c639..fb18914 100644
--- a/tests/golden/master/openshift4-logging/openshift4-logging/60_collector_alerts.yaml
+++ b/tests/golden/master/openshift4-logging/openshift4-logging/60_collector_alerts.yaml
@@ -115,7 +115,7 @@ spec:
           expr: "(label_replace(sum by(hostname) (vector_buffer_byte_size{component_kind='sink',\
             \ buffer_type='disk'}), 'instance', '$1', 'hostname', '(.*)') \n/ on(instance)\
             \ group_left() sum by(instance) (node_filesystem_size_bytes{mountpoint='/var'}))\
-            \ * 100  > 0.15\n"
+            \ * 100  > 15\n"
           for: 5m
           labels:
             service: collector