diff --git a/templates/_helpers.tpl b/templates/_helpers.tpl
index 7c1e202..10815b8 100644
--- a/templates/_helpers.tpl
+++ b/templates/_helpers.tpl
@@ -234,7 +234,7 @@ volumes:
       {{- else if eq ( default "self" $value.configMap.name ) "self-metadata" }}
       name: {{ include "common.fullname" ( dict "root" $root "service" $root.Values "serviceName" "metadata" ) }}
       {{- else }}
-      name: {{ $value.configMap.name }}
+      name: {{ default $value.configMap.name ( get $root.Values.global.configMapNameOverride $value.configMap.name ) | quote }}
       {{- end }}
       {{- with $value.configMap.items }}
       items: {{- . | toYaml | nindent 6 }}
diff --git a/tests/expected.yaml b/tests/expected.yaml
index 33cc4a4..8e1b280 100644
--- a/tests/expected.yaml
+++ b/tests/expected.yaml
@@ -630,6 +630,9 @@ spec:
               port: http
 
       volumes:
+        - name: config-map-override
+          configMap:
+            name: "test-overridden"
         - name: my-device-volume
           persistentVolumeClaim:
             claimName: pvc-name
@@ -1014,6 +1017,11 @@ spec:
           image: "camptocamp/image:latest"
           imagePullPolicy: IfNotPresent
           env:
+            - name: "CONFIG_MAP_OVERRIDE"
+              valueFrom:
+                configMapKeyRef:
+                  name: "test-overridden"
+                  key: "testSingleLine"
             - name: "SELF_CONFIGMAP"
               valueFrom:
                 configMapKeyRef:
diff --git a/tests/values.yaml b/tests/values.yaml
index d5fa669..1d73bfb 100644
--- a/tests/values.yaml
+++ b/tests/values.yaml
@@ -1,3 +1,7 @@
+global:
+  configMapNameOverride:
+    test-override: test-overridden
+
 metadata:
   enabled: true
 
@@ -250,6 +254,9 @@ services:
           items:
             - key: hostname
               path: hostname.txt
+      config-map-override:
+        configMap:
+          name: test-override
 
     service: &servicedefinition
       type: ClusterIP
@@ -571,3 +578,7 @@ services:
             type: secret
             name: self-external-secret-app
             key: hostname
+          CONFIG_MAP_OVERRIDE:
+            type: configMap
+            name: test-override
+            key: testSingleLine