diff --git a/kubernetes/helm/openslice/templates/tmfweb-config.yaml b/kubernetes/helm/openslice/templates/tmfweb-config.yaml
index f0354e76b6759dc079bf83c55bf2902ebbbba46d..badce4153c45a9aa610586a3b2b66bac6302fd46 100644
--- a/kubernetes/helm/openslice/templates/tmfweb-config.yaml
+++ b/kubernetes/helm/openslice/templates/tmfweb-config.yaml
@@ -10,8 +10,10 @@ metadata:
   name: {{ include "openslice.fullname" . }}-tmfweb-config
 data:
   config.prod.json: |
-    {{- .Files.Get "files/org.etsi.osl.tmf.web/src/assets/config/config.prod.json" | nindent 4 }}
+    {{- $prodJson := .Files.Get "files/org.etsi.osl.tmf.web/src/assets/config/config.prod.json" | required "config.prod.json is required" }}
+    {{ $prodJson | nindent 4 }}
   config.theming.json: |
     {{- .Files.Get "files/org.etsi.osl.tmf.web/src/assets/config/config.theming.json" | nindent 4 }}
   theming.scss: |
-    {{- .Files.Get "files/org.etsi.osl.tmf.web/src/assets/config/theming.scss" | nindent 4 }}
+    {{- $themingScss := .Files.Get "files/org.etsi.osl.tmf.web/src/assets/config/theming.scss" | required "theming.scss is required" }}
+    {{ $themingScss | nindent 4 }}