--- a/testing/mozharness/scripts/repackage.py
+++ b/testing/mozharness/scripts/repackage.py
@@ -117,25 +117,23 @@ class Repackage(BaseScript):
         """assign mozconfig."""
         c = self.config
         dirs = self.query_abs_dirs()
         abs_mozconfig_path = ''
 
         # first determine the mozconfig path
         if c.get('src_mozconfig'):
             self.info('Using in-tree mozconfig')
-            abs_mozconfig_path = os.path.join(dirs['abs_mozilla_dir'], c.get('src_mozconfig'))
+            abs_mozconfig_path = os.path.join(dirs['abs_mozilla_dir'], c['src_mozconfig'])
         else:
             self.fatal("'src_mozconfig' must be in the config "
                        "in order to determine the mozconfig.")
 
         # print its contents
-        content = self.read_from_file(abs_mozconfig_path, error_level=FATAL)
-        self.info("mozconfig content:")
-        self.info(content)
+        self.read_from_file(abs_mozconfig_path, error_level=FATAL)
 
         # finally, copy the mozconfig to a path that 'mach build' expects it to be
         self.copyfile(abs_mozconfig_path, os.path.join(dirs['abs_mozilla_dir'], '.mozconfig'))
 
     def _run_configure(self):
         dirs = self.query_abs_dirs()
         python = self.query_exe('python2.7')
         command = [python, 'mach', '--log-no-times', 'configure']