diff --git a/packages/binding-coap/src/coap-server.ts b/packages/binding-coap/src/coap-server.ts
index ffb9ffc71..b0da6843a 100644
--- a/packages/binding-coap/src/coap-server.ts
+++ b/packages/binding-coap/src/coap-server.ts
@@ -525,7 +525,9 @@ export default class CoapServer implements ProtocolServer {
             try {
                 this.streamContentResponse(res, content, { end: true });
             } catch (err) {
-                error(`CoapServer on port ${this.getPort()} got internal error on observe '${req.url}': ${err.message}`);
+                error(
+                    `CoapServer on port ${this.getPort()} got internal error on observe '${req.url}': ${err.message}`
+                );
                 this.sendResponse(res, "5.00", err.message);
             }
         };