diff --git a/tmtc/acs_ctrl.py b/tmtc/acs_ctrl.py
index e794461..e0b108b 100644
--- a/tmtc/acs_ctrl.py
+++ b/tmtc/acs_ctrl.py
@@ -154,7 +154,7 @@ def perform_mgm_calibration(pw: PrintWrapper, mgm_tuple: Tuple):
         )
         if len(mgm_tuple) != 3:
             pw.dlog(f"MGM tuple has invalid length {len(mgm_tuple)}")
-        mgm_list = [mgm / 10e6 for mgm in mgm_tuple]
+        mgm_list = [mgm / 1e6 for mgm in mgm_tuple]
         command = (
             f"magnetometer_field {mgm_list[0]} {mgm_list[1]} {mgm_list[2]}\n".encode()
         )