diff --git a/moulinette/utils/process.py b/moulinette/utils/process.py
index 6b60c304..95b7dce9 100644
--- a/moulinette/utils/process.py
+++ b/moulinette/utils/process.py
@@ -121,7 +121,7 @@ class LogPipe(threading.Thread):
     def run(self):
         """Run the thread, logging everything."""
         for line in iter(self.pipeReader.readline, ""):
-            self.queue.put((self.log_callback, line.strip("\n")))
+            self.queue.put((self.log_callback, line.decode('utf-8').strip("\n")))
 
         self.pipeReader.close()