--- a/testing/mozbase/mozinfo/mozinfo/mozinfo.py
+++ b/testing/mozbase/mozinfo/mozinfo/mozinfo.py
@@ -89,17 +89,18 @@ if system in ["Microsoft", "Windows"]:
     os_version = "%d.%d" % (major, minor)
 elif system.startswith('MINGW'):
     # windows/mingw python build (msys)
     info['os'] = 'win'
     os_version = version = unknown
 elif system == "Linux":
     # Try to get a useful distro name/version out of os-release.
     try:
-        os_info = dict(map(lambda x: x.strip('"'), l.split('=')) for l in open('/etc/os-release', 'rb').read().splitlines())
+        os_info = dict(map(lambda x: x.strip('"'), l.split('='))
+                       for l in open('/etc/os-release', 'rb').read().splitlines())
     except IOError:
         os_info = {}
 
     info['os'] = 'linux'
     version = os_version = os_info.get('VERSION_ID', release)
     info['linux_distro'] = os_info.get('NAME', 'lfs')
 
 elif system in ['DragonFly', 'FreeBSD', 'NetBSD', 'OpenBSD']: