diff --git a/setup.py b/setup.py
index 21bdced1..4e69f706 100755
--- a/setup.py
+++ b/setup.py
@@ -56,7 +56,7 @@ def majorminor(version):
 
 
 # Locate the re2 module
-_re2_prefixes = ['/usr', '/usr/local', '/opt/', os.environ['HOME'] + '/.local']
+_re2_prefixes = ['/usr', '/usr/local', '/opt/', '/opt/local', os.environ['HOME'] + '/.local']
 
 re2_prefix = ''
 for a in _re2_prefixes: