diff --git a/roles/custom/matrix-bridge-mautrix-telegram/templates/config.yaml.j2 b/roles/custom/matrix-bridge-mautrix-telegram/templates/config.yaml.j2
index 98ba72461..55f5ff0fe 100644
--- a/roles/custom/matrix-bridge-mautrix-telegram/templates/config.yaml.j2
+++ b/roles/custom/matrix-bridge-mautrix-telegram/templates/config.yaml.j2
@@ -2,7 +2,7 @@
 # Network-specific config options
 network:
     # Get your own API keys at https://my.telegram.org/apps
-    api_id: {{ matrix_mautrix_telegram_api_id | to_json }}
+    api_id: {{ matrix_mautrix_telegram_api_id | int | to_json }}
     api_hash: {{ matrix_mautrix_telegram_api_hash | to_json }}
 
     # Device info shown in the Telegram device list.