diff --git a/eive_tmtc/tmtc/acs/imtq.py b/eive_tmtc/tmtc/acs/imtq.py
index c0caf24..ee2e1e4 100644
--- a/eive_tmtc/tmtc/acs/imtq.py
+++ b/eive_tmtc/tmtc/acs/imtq.py
@@ -61,6 +61,7 @@ class ImtqSetId:
     NEGATIVE_Y_TEST = 13
     POSITIVE_Z_TEST = 14
     NEGATIVE_Z_TEST = 15
+    SELF_TEST_SET = 16
 
 
 class ImtqActionId: