diff --git a/charts/victoria-metrics-common/CHANGELOG.md b/charts/victoria-metrics-common/CHANGELOG.md
index e4c8629b4..557a6e89b 100644
--- a/charts/victoria-metrics-common/CHANGELOG.md
+++ b/charts/victoria-metrics-common/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## Next release
 
 - Fixed protocol extraction with TLS enabled
+- Allow overriding fullname from `global.fullnameOverride`
 
 ## 0.0.9
 
diff --git a/charts/victoria-metrics-common/templates/_helpers.tpl b/charts/victoria-metrics-common/templates/_helpers.tpl
index 6c1c1a80d..6296f02e2 100644
--- a/charts/victoria-metrics-common/templates/_helpers.tpl
+++ b/charts/victoria-metrics-common/templates/_helpers.tpl
@@ -49,6 +49,8 @@ If release name contains chart name it will be used as a full name.
       {{- $fullname = $Values.fullnameOverride -}}
     {{- else if (dig $Chart.Name "fullnameOverride" "" ($Values.global)) -}}
       {{- $fullname = (dig $Chart.Name "fullnameOverride" "" ($Values.global)) -}}
+    {{- else if ($Values.global).fullnameOverride -}}
+      {{- $fullname = $Values.global.fullnameOverride -}}
     {{- else -}}
       {{- $name := default $Chart.Name $Values.nameOverride -}}
       {{- if contains $name $Release.Name -}}
diff --git a/charts/victoria-metrics-k8s-stack/CHANGELOG.md b/charts/victoria-metrics-k8s-stack/CHANGELOG.md
index ba5be39b6..6b4251b3b 100644
--- a/charts/victoria-metrics-k8s-stack/CHANGELOG.md
+++ b/charts/victoria-metrics-k8s-stack/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## Next release
 
-- TODO
+- Fail chart in case of rule name collision
 
 ## 0.25.15
 
diff --git a/charts/victoria-metrics-k8s-stack/templates/rules/rule.yaml b/charts/victoria-metrics-k8s-stack/templates/rules/rule.yaml
index 22aece154..bd6df5b8a 100644
--- a/charts/victoria-metrics-k8s-stack/templates/rules/rule.yaml
+++ b/charts/victoria-metrics-k8s-stack/templates/rules/rule.yaml
@@ -1,4 +1,5 @@
 {{- if .Values.defaultRules.create }}
+{{- $existingRules := default list }}
 
 {{- /*
 Default rules alias
@@ -98,12 +99,17 @@ Filter out ignore rules
 Check if group is enabled
 */}}
 {{- if (and $rulesSpec (dig "create" true $group) $groupCondition) }}
+{{- $ruleName := (include "victoria-metrics-k8s-stack.rulegroup.name" $ctx) }}
+{{- if has $ruleName $existingRules }}
+  {{- fail "Rule name collision was met most likely due to truncated up to 63 symbols resource name. Please consider using shorter release name or set `fullnameOverride` for a shorter name prefix"}}
+{{- end }}
+{{- $existingRules = append $existingRules $ruleName }}
 ---
 apiVersion: operator.victoriametrics.com/v1beta1
 kind: VMRule
 metadata:
   namespace: {{ include "vm.namespace" $ }}
-  name: {{ include "victoria-metrics-k8s-stack.rulegroup.name" $ctx }}
+  name: {{ $ruleName }}
   {{- with (include "victoria-metrics-k8s-stack.rulegroup.labels" $ctx) }}
   labels: {{ . | nindent 4 }}
   {{- end }}
diff --git a/hack/helm/victoria-metrics-k8s-stack/e2e/simple.yaml b/hack/helm/victoria-metrics-k8s-stack/e2e/simple.yaml
index 1b92d940f..83297c36e 100644
--- a/hack/helm/victoria-metrics-k8s-stack/e2e/simple.yaml
+++ b/hack/helm/victoria-metrics-k8s-stack/e2e/simple.yaml
@@ -4,7 +4,7 @@ global:
     keyRef:
       name: keyName
       key: key
-fullnameOverride: "vm-stack"
+fullnameOverride: test
 victoria-metrics-operator:
   fullnameOverride: "vm-operator"
 vmsingle:
diff --git a/hack/helm/victoria-metrics-k8s-stack/lint/simple.yaml b/hack/helm/victoria-metrics-k8s-stack/lint/simple.yaml
index 91a1aa397..e05db6533 100644
--- a/hack/helm/victoria-metrics-k8s-stack/lint/simple.yaml
+++ b/hack/helm/victoria-metrics-k8s-stack/lint/simple.yaml
@@ -1,3 +1,4 @@
+fullnameOverride: test
 grafanaOperatorDashboardsFormat:
   enabled: true
 additionalVictoriaMetricsMap: