diff --git a/vector-config/src/tchap/res/values/config-features.xml b/vector-config/src/tchap/res/values/config-features.xml
index e30415e59d..f9439b9f00 100755
--- a/vector-config/src/tchap/res/values/config-features.xml
+++ b/vector-config/src/tchap/res/values/config-features.xml
@@ -4,5 +4,7 @@
     <bool name="tchap_is_key_backup_enabled">true</bool>
     <bool name="tchap_is_thread_enabled">false</bool>
 
-    <string-array name="tchap_is_voip_supported_homeservers" translatable="false" />
+    <string-array name="tchap_is_voip_supported_homeservers" translatable="false">
+        <item>agent.dinum.tchap.gouv.fr</item>
+    </string-array>
 </resources>
diff --git a/vector/src/withpinning/res/xml/network_security_config.xml b/vector/src/withpinning/res/xml/network_security_config.xml
index d4059276fa..5f97166eaa 100644
--- a/vector/src/withpinning/res/xml/network_security_config.xml
+++ b/vector/src/withpinning/res/xml/network_security_config.xml
@@ -13,6 +13,7 @@
     <!-- Allow system certificates for firebase if used. No effect on FDroid variant -->
     <domain-config cleartextTrafficPermitted="false">
         <domain includeSubdomains="false">firebaseinstallations.googleapis.com</domain>
+        <domain includeSubdomains="false">openmaptiles.github.io</domain>
         <trust-anchors>
             <certificates src="system" />
         </trust-anchors>