diff --git a/script/gen_test_desc.py b/script/gen_test_desc.py
index 5913c32..d729a9f 100755
--- a/script/gen_test_desc.py
+++ b/script/gen_test_desc.py
@@ -35,9 +35,9 @@
     # config_list contains build configs as read from the test config
     if group.startswith("scp-"):
         # SCP configs would be specified in the following format:
-        #  scp_config, tf_config, tftf_config
+        #  scp_config, tf_config, tftf_config, scp_tools
         # Reshuffle them into the canonical format
-        config_list = [config_list[1], config_list[2], config_list[0]]
+        config_list = [config_list[1], config_list[2], config_list[0], config_list[3]]
 
     return config_list
 
@@ -48,9 +48,9 @@
     build_config, run_config = test.split(":")
 
     # Test descriptors are always generated in the following order:
-    #  tf_config, tftf_config, scp_config
+    #  tf_config, tftf_config, scp_config, scp_tools
     # Fill missing configs to the right with "nil".
-    config_list = (build_config.split(",") + ["nil"] * 3)[:3]
+    config_list = (build_config.split(",") + ["nil"] * 4)[:4]
 
     # Perform any group-specific translation on the config
     config_list = translate_build_config(group, config_list)