1 files changed, 6 insertions, 1 deletions
diff --git a/python/servo/package_commands.py b/python/servo/package_commands.py
index e62a742589c..f44786251cc 100644
--- a/python/servo/package_commands.py
+++ b/python/servo/package_commands.py
@@ -775,7 +775,11 @@ def setup_uwp_signing(ms_app_store, publisher):
 
     def run_powershell_cmd(cmd):
         try:
-            return subprocess.check_output(['powershell.exe', '-NoProfile', '-Command', cmd])
+            return (
+                subprocess
+                .check_output(['powershell.exe', '-NoProfile', '-Command', cmd])
+                .decode('utf-8')
+            )
         except subprocess.CalledProcessError:
             print("ERROR: PowerShell command failed: ", cmd)
             exit(1)
@@ -841,6 +845,7 @@ def build_uwp(platforms, dev, msbuild_dir, ms_app_store):
             .replace("%%PACKAGE_PLATFORMS%%", '|'.join(platforms))
             .replace("%%CONFIGURATION%%", Configuration)
             .replace("%%SOLUTION%%", path.join(os.getcwd(), 'support', 'hololens', 'ServoApp.sln'))
+            .encode('utf-8')
         )
         build_file.close()
         # Generate an appxbundle.