diff --git a/lib/tempest b/lib/tempest
index 8931300..ec045a9 100644
--- a/lib/tempest
+++ b/lib/tempest
@@ -63,6 +63,7 @@
 
 
 BOTO_MATERIALS_PATH="$FILES/images/s3-materials/cirros-${CIRROS_VERSION}"
+BOTO_CONF=$TEMPEST_DIR/boto.cfg
 
 # Cinder/Volume variables
 TEMPEST_VOLUME_DRIVER=${TEMPEST_VOLUME_DRIVER:-default}
@@ -424,6 +425,12 @@
         fi
     done
 
+    if is_ssl_enabled_service "keystone" || is_service_enabled tls-proxy; then
+        # Use the BOTO_CONFIG environment variable to point to this file
+        iniset $BOTO_CONF Boto ca_certificates_file $SSL_BUNDLE_FILE
+        sudo chown $STACK_USER $BOTO_CONF
+    fi
+
     # Restore IFS
     IFS=$ifs
 }