diff --git a/tmtc/acs_subsystem.py b/tmtc/acs_subsystem.py
index 650a1f7..26477ec 100644
--- a/tmtc/acs_subsystem.py
+++ b/tmtc/acs_subsystem.py
@@ -26,11 +26,10 @@ class OpCodes(str, enum.Enum):
 
 class AcsModes(enum.IntEnum):
     OFF = 0
-    SAFE = 1
-    DETUMBLE = 2
-    IDLE = 3
-    TARGET_PT = 4
-    REPORT_ALL_MODES = 5
+    SAFE = 1 << 24
+    DETUMBLE = 2 << 24
+    IDLE = 3 << 24
+    TARGET_PT = 4 << 24
 
 
 class Info(str, enum.Enum):