diff --git a/pinaxcon/settings.py b/pinaxcon/settings.py
index 14b1d169..b76cb819 100644
--- a/pinaxcon/settings.py
+++ b/pinaxcon/settings.py
@@ -1,5 +1,6 @@
 from decimal import Decimal
 import os
+import shutil
 import sys
 
 import django
@@ -416,8 +417,8 @@ SASS_PROCESSOR_INCLUDE_DIRS = [
     os.path.join(PROJECT_ROOT, 'static/src/scss'),
 ]
 
-xmlsec_binary = '/usr/bin/xmlsec1'
-if not os.path.isfile(xmlsec_binary):
+xmlsec_binary = shutil.which('xmlsec1')
+if not xmlsec_binary:
         sys.exit('ERROR: xmlsec1 binary missing, EXITING')
 
 SAML_ATTRIBUTE_MAPPING = {