diff --git a/tempest/lib/common/http.py b/tempest/lib/common/http.py
index 8a47d44..b4b1fc9 100644
--- a/tempest/lib/common/http.py
+++ b/tempest/lib/common/http.py
@@ -25,8 +25,7 @@
         if disable_ssl_certificate_validation:
             urllib3.disable_warnings()
             kwargs['cert_reqs'] = 'CERT_NONE'
-
-        if ca_certs:
+        elif ca_certs:
             kwargs['cert_reqs'] = 'CERT_REQUIRED'
             kwargs['ca_certs'] = ca_certs