diff --git a/etcd/map.jinja b/etcd/map.jinja
index 1a326a6..d209956 100644
--- a/etcd/map.jinja
+++ b/etcd/map.jinja
@@ -22,6 +22,6 @@
 {%- set monitoring = salt['grains.filter_by']({
   'default': {
     'failed_http_requests_percentage': 1,
-    'instances_major_threshold_percent': '0.3'
+    'instances_major_threshold_percent': 0.3
   },
 }, grain='os_family', merge=salt['pillar.get']('etcd:monitoring')) %}
diff --git a/etcd/meta/prometheus.yml b/etcd/meta/prometheus.yml
index 2addb4c..f9a006d 100644
--- a/etcd/meta/prometheus.yml
+++ b/etcd/meta/prometheus.yml
@@ -57,7 +57,7 @@
         description: "The etcd {{ $labels.instance }} instance is down for at least 2 minutes."
       {%- endraw %}
     EtcdServiceDownMajor:
-      {%- set instances_major_threshold_percent = monitoring.instances_major_threshold_percent %}
+      {%- set instances_major_threshold_percent = monitoring.instances_major_threshold_percent|float %}
       if: "count(up{job='etcd'} == 0) > count(up{job='etcd'}) * {{ monitoring.instances_major_threshold_percent }}"
       {%- raw %}
       for: 2m