diff --git a/SConstruct b/SConstruct
index b11fd3046..a7c2de9a7 100644
--- a/SConstruct
+++ b/SConstruct
@@ -125,7 +125,7 @@ def sort_paths(items,priority):
             else:
                 path_types['user'].append(i)
         # key system libs (likely others will fall into 'other')
-        elif '/usr/' in i or '/System' in i or '/lib' in i:
+        elif '/usr/' in i or '/System' in i or i.startswith('/lib'):
             path_types['system'].append(i)
         # anything not yet matched...
         # likely a combo of rare system lib paths and