diff --git a/operations/helm/charts/mimir-distributed/CHANGELOG.md b/operations/helm/charts/mimir-distributed/CHANGELOG.md
index 9ef45eec34f..acf96b39916 100644
--- a/operations/helm/charts/mimir-distributed/CHANGELOG.md
+++ b/operations/helm/charts/mimir-distributed/CHANGELOG.md
@@ -32,6 +32,7 @@ Entries should include a reference to the Pull Request that introduced the chang
 * [ENHANCEMENT] Add support for setting type and internal traffic policy for Kubernetes service. Set `internalTrafficPolicy=Cluster` by default in all services with type `ClusterIP`. #9619
 * [ENHANCEMENT] Add the possibility to create a dedicated serviceAccount for the `alertmanager` component by setting `alertmanager.serviceAcount.create` to true in the values. #9781
 * [BUGFIX] Fix PVC template in AlertManager to not show diff in ArgoCD. #9774
+* [BUGFIX] Fix how `fullnameOverride` is reflected in generated manifests. #9564
 
 ## 5.5.1
 
diff --git a/operations/helm/charts/mimir-distributed/templates/minio/create-bucket-job.yaml b/operations/helm/charts/mimir-distributed/templates/minio/create-bucket-job.yaml
index 7750dbad1c9..5c92e40cca3 100644
--- a/operations/helm/charts/mimir-distributed/templates/minio/create-bucket-job.yaml
+++ b/operations/helm/charts/mimir-distributed/templates/minio/create-bucket-job.yaml
@@ -58,9 +58,9 @@ spec:
           projected:
             sources:
             - configMap:
-                name: {{ .Release.Name }}-minio
+                name: {{ template "minio.fullname" .Subcharts.minio }}
             - secret:
-                name: {{ .Release.Name }}-minio
+                name: {{ template "minio.fullname" .Subcharts.minio }}
         {{- if .Values.minio.tls.enabled }}
         - name: cert-secret-volume-mc
           secret:
@@ -76,7 +76,7 @@ spec:
         command: ["/bin/sh", "/config/initialize"]
         env:
           - name: MINIO_ENDPOINT
-            value: {{ .Release.Name }}-minio
+            value: {{ template "minio.fullname" .Subcharts.minio }}
           - name: MINIO_PORT
             value: {{ .Values.minio.service.port | quote }}
         volumeMounts:
diff --git a/operations/helm/charts/mimir-distributed/values.yaml b/operations/helm/charts/mimir-distributed/values.yaml
index cb955378471..607dc91f689 100644
--- a/operations/helm/charts/mimir-distributed/values.yaml
+++ b/operations/helm/charts/mimir-distributed/values.yaml
@@ -140,7 +140,7 @@ mimir:
         s3:
           access_key_id: {{ .Values.minio.rootUser }}
           bucket_name: enterprise-metrics-admin
-          endpoint: {{ .Release.Name }}-minio.{{ .Release.Namespace }}.svc:9000
+          endpoint: {{ template "minio.fullname" .Subcharts.minio }}.{{ .Release.Namespace }}.svc:{{ .Values.minio.service.port }}
           insecure: true
           secret_access_key: {{ .Values.minio.rootPassword }}
       {{- end }}
@@ -171,7 +171,7 @@ mimir:
       s3:
         access_key_id: {{ .Values.minio.rootUser }}
         bucket_name: {{ include "mimir.minioBucketPrefix" . }}-ruler
-        endpoint: {{ .Release.Name }}-minio.{{ .Release.Namespace }}.svc:9000
+        endpoint: {{ template "minio.fullname" .Subcharts.minio }}.{{ .Release.Namespace }}.svc:{{ .Values.minio.service.port }}
         insecure: true
         secret_access_key: {{ .Values.minio.rootPassword }}
     {{- end }}
@@ -219,7 +219,7 @@ mimir:
       s3:
         access_key_id: {{ .Values.minio.rootUser }}
         bucket_name: {{ include "mimir.minioBucketPrefix" . }}-tsdb
-        endpoint: {{ .Release.Name }}-minio.{{ .Release.Namespace }}.svc:9000
+        endpoint: {{ template "minio.fullname" .Subcharts.minio }}.{{ .Release.Namespace }}.svc:{{ .Values.minio.service.port }}
         insecure: true
         secret_access_key: {{ .Values.minio.rootPassword }}
       {{- end }}
@@ -374,7 +374,7 @@ mimir:
       {{- if .Values.minio.enabled }}
       backend: s3
       s3:
-        endpoint: {{ .Release.Name }}-minio.{{ .Release.Namespace }}.svc:9000
+        endpoint: {{ template "minio.fullname" .Subcharts.minio }}.{{ .Release.Namespace }}.svc:{{ .Values.minio.service.port }}
         bucket_name: {{ include "mimir.minioBucketPrefix" . }}-ruler
         access_key_id: {{ .Values.minio.rootUser }}
         secret_access_key: {{ .Values.minio.rootPassword }}