diff --git a/framework/python/src/common/session.py b/framework/python/src/common/session.py
index 08e5dda95..02d46591e 100644
--- a/framework/python/src/common/session.py
+++ b/framework/python/src/common/session.py
@@ -648,6 +648,11 @@ def load_certs(self):
     self._certs = []
 
     for cert_file in os.listdir(CERTS_PATH):
+
+      # Ignore directories
+      if os.path.isdir(os.path.join(CERTS_PATH, cert_file)):
+        continue
+
       LOGGER.debug(f'Loading certificate {cert_file}')
       try: