diff --git a/charts/ingress-nginx/templates/default-backend-deployment.yaml b/charts/ingress-nginx/templates/default-backend-deployment.yaml
index 75c3d09cbf..a25dd4e247 100644
--- a/charts/ingress-nginx/templates/default-backend-deployment.yaml
+++ b/charts/ingress-nginx/templates/default-backend-deployment.yaml
@@ -118,6 +118,6 @@ spec:
     {{- end }}
       terminationGracePeriodSeconds: 60
     {{- if .Values.defaultBackend.extraVolumes }}
-      volumes: {{ toYaml .Values.defaultBackend.extraVolumes | nindent 8 }}
+      volumes: {{ tpl (toYaml .Values.defaultBackend.extraVolumes) $ | nindent 8 }}
     {{- end }}
 {{- end }}
diff --git a/charts/ingress-nginx/tests/default-backend-deployment_test.yaml b/charts/ingress-nginx/tests/default-backend-deployment_test.yaml
index 11d400c462..ed3bb87417 100644
--- a/charts/ingress-nginx/tests/default-backend-deployment_test.yaml
+++ b/charts/ingress-nginx/tests/default-backend-deployment_test.yaml
@@ -196,3 +196,26 @@ tests:
       - equal:
           path: spec.template.spec.automountServiceAccountToken
           value: false
+
+  - it: should create a Deployment with extra volumes if `defaultBackend.extraVolumes` is set
+    set:
+      defaultBackend.enabled: true
+      defaultBackend.extraVolumes:
+        - name: extra-volume
+          configMap:
+            name: '{{ .Release.Name }}'
+      defaultBackend.extraVolumeMounts:
+        - name: extra-volume
+          mountPath: /extra
+    asserts:
+      - equal:
+          path: spec.template.spec.volumes
+          value:
+            - name: extra-volume
+              configMap:
+                name: RELEASE-NAME
+      - equal:
+          path: spec.template.spec.containers[0].volumeMounts
+          value:
+            - name: extra-volume
+              mountPath: /extra