diff --git a/Chart/templates/configmap.yaml b/Chart/templates/configmap.yaml
index b001b1b..108cc43 100644
--- a/Chart/templates/configmap.yaml
+++ b/Chart/templates/configmap.yaml
@@ -49,7 +49,9 @@ data:
             "databasePath": "{{ .Values.database.importPath | default "" }}",
             "overwriteDatabase": {{ .Values.database.overwrite | default false }},
             "generateSalts": true,
-            "activateTheme": "{{ .Values.site.theme | default .Values.site.name }}"
+            "activateTheme": "{{ .Values.site.theme | default .Values.site.name }}",
+            "convertUploadsToWebp": "{{ .Values.site.enableWebpConversion | default false }}",
+            "convertMissingOnly": true
         }
 
     unit.json: |-
diff --git a/Chart/values.yaml b/Chart/values.yaml
index c40c09f..d639c42 100644
--- a/Chart/values.yaml
+++ b/Chart/values.yaml
@@ -98,6 +98,9 @@ site:
   # Enable the route for trying .webp files before images
   enableWebpRoute: "true"
 
+  # Enable the automatic conversion of WebP images
+  enableWebpConversion: "true"
+
   # The resource limits for the site
   resources:
     replicas: 1