diff --git a/blockade/utils.py b/blockade/utils.py
index 119f9d2..3d4e3e0 100644
--- a/blockade/utils.py
+++ b/blockade/utils.py
@@ -45,9 +45,14 @@ def docker_run(command,
 
     stdout = docker_client.logs(container=container.get('Id'),
                                 stdout=True, stream=True)
+
+    max_len = 1000000
     output = b''
     for item in stdout:
         output += item
+        if len(output) > max_len:
+            output += "\n...<more>"
+            break
 
     output = output.decode('utf-8')