diff --git a/src/tasks.js b/src/tasks.js
index 698d782bc..a2d11cce2 100644
--- a/src/tasks.js
+++ b/src/tasks.js
@@ -204,7 +204,7 @@ function startTask(id, options, callback) {
 
         if (callback) callback(taskError, task ? task.result : null);
 
-        debug(`startTask: ${id} done. error: ${taskError}`);
+        debug(`startTask: ${id} done. error:`, taskError);
     });
 
     if (options.timeout) {