diff --git a/src/rocker/core.py b/src/rocker/core.py
index c6c27f3c..515a601a 100644
--- a/src/rocker/core.py
+++ b/src/rocker/core.py
@@ -150,9 +150,6 @@ def docker_build(docker_client = None, output_callback = None, **kwargs):
         if output_callback is not None:
             output_callback(output)
         build_output.append(output)
-            
-        if "error" in output.lower():
-            raise Exception("Build failed")
 
         match = re.match(r'Successfully built ([a-z0-9]{12})', output)
         if match: