diff --git a/charts/matrix-synapse/Chart.yaml b/charts/matrix-synapse/Chart.yaml
index f32ba1d..af04e3d 100644
--- a/charts/matrix-synapse/Chart.yaml
+++ b/charts/matrix-synapse/Chart.yaml
@@ -5,7 +5,7 @@ description: Matrix reference homeserver
 appVersion: 1.18.0
 
 type: application
-version: 0.1.4
+version: 0.1.5
 maintainers:
   - name: Alexander Olofsson
     email: ace@haxalot.com
diff --git a/charts/matrix-synapse/templates/well-known-config.yaml b/charts/matrix-synapse/templates/well-known-config.yaml
index 44a2b86..4b51758 100644
--- a/charts/matrix-synapse/templates/well-known-config.yaml
+++ b/charts/matrix-synapse/templates/well-known-config.yaml
@@ -35,6 +35,9 @@ data:
       "access-control-allow-methods" => "GET, POST, PUT, DELETE, OPTIONS",
       "access-control-allow-origin" => "*"
     )
+    setenv.set-response-header = (
+      "content-type" => "application/json"
+    )
   server.json: |-
 {{ dict "m.server" (printf "%s:%d" (.Values.wellknown.host | default .Values.config.serverName) (.Values.wellknown.port | default 443)) | toJson | indent 4 }}
 {{- end }}