diff --git a/lib/tempest b/lib/tempest
index a5c961bc85..064d618a7e 100644
--- a/lib/tempest
+++ b/lib/tempest
@@ -433,8 +433,7 @@ function configure_tempest {
         SCENARIO_IMAGE_DIR=${SCENARIO_IMAGE_DIR:-$FILES}
         SCENARIO_IMAGE_FILE=$DEFAULT_IMAGE_FILE_NAME
     fi
-    iniset $TEMPEST_CONFIG scenario img_dir $SCENARIO_IMAGE_DIR
-    iniset $TEMPEST_CONFIG scenario img_file $SCENARIO_IMAGE_FILE
+    iniset $TEMPEST_CONFIG scenario img_file $SCENARIO_IMAGE_DIR/$SCENARIO_IMAGE_FILE
 
     # If using provider networking, use the physical network for validation rather than private
     TEMPEST_SSH_NETWORK_NAME=$PRIVATE_NETWORK_NAME