--- setup.py.orig
+++ setup.py
@@ -58,8 +58,8 @@ def tiny_p(cmd, capture=True):
 def pkg_config_read(library, var):
     fallbacks = {
         'systemd': {
-            'systemdsystemunitdir': '/lib/systemd/system',
-            'systemdsystemgeneratordir': '/lib/systemd/system-generators',
+            'systemdsystemunitdir': '/usr/lib/systemd/system',
+            'systemdsystemgeneratordir': '/usr/lib/systemd/system-generators',
         }
     }
     cmd = ['pkg-config', '--variable=%s' % var, library]