diff --git a/docs/index.yaml b/docs/index.yaml
index 12bcea2..b8c0e31 100644
--- a/docs/index.yaml
+++ b/docs/index.yaml
@@ -401,10 +401,10 @@ entries:
     - https://grycap.github.io/helm-charts/IM-1.0.0.tgz
     version: 1.0.0
   oscar:
-    - apiVersion: v1
-    created: "2024-06-21T11:50:48.19443738Z"
+  - apiVersion: v1
+    created: "2024-07-26T10:56:03.534080116Z"
     description: Open Source Serverless Computing for Data-Processing Applications
-    digest: 8fb34d050a21a74c4821b4440031bf33251843e7c469ec1c24df39dcb1191603
+    digest: ebdc0277716481dabfa40f63363c22408daefab7d158f76ace29fd3bde9e5078
     home: https://grycap.github.io/oscar
     icon: https://github.com/grycap/helm-charts/raw/master/icons/oscar.png
     keywords:
diff --git a/docs/oscar-3.2.0.tgz b/docs/oscar-3.2.0.tgz
index 4f56231..b78a6d9 100644
Binary files a/docs/oscar-3.2.0.tgz and b/docs/oscar-3.2.0.tgz differ
diff --git a/oscar/templates/oscar-additional-cm.yaml b/oscar/templates/oscar-additional-cm.yaml
index e606a50..37bfd77 100644
--- a/oscar/templates/oscar-additional-cm.yaml
+++ b/oscar/templates/oscar-additional-cm.yaml
@@ -9,6 +9,6 @@ data:
     images:
       allowed_prefixes:
         {{- range .Values.additionalConfig.allowedImagePrefix }}
-        - {{ . | title | quote}}
+        - {{ . | quote}}
         {{- end }}
 {{- end }}
\ No newline at end of file
diff --git a/oscar/tests/oscar-additional-cm.yaml b/oscar/tests/oscar-additional-cm.yaml
new file mode 100644
index 0000000..6d4eb36
--- /dev/null
+++ b/oscar/tests/oscar-additional-cm.yaml
@@ -0,0 +1,17 @@
+suite: test oscar deployment
+templates:
+  - oscar-additional-cm.yaml
+tests:
+  - name: test1
+    set:
+      additionalConfig.allowedImagePrefix: [grycap]
+    asserts:
+      - isKind:
+          of: ConfigMap
+      - equal:
+          path: data
+          value:
+            config.yaml: |-
+              images:
+                allowed_prefixes:
+                  - "grycap"