diff --git a/mission/controller/AcsController.cpp b/mission/controller/AcsController.cpp
index 1f215ded..ca030f1d 100644
--- a/mission/controller/AcsController.cpp
+++ b/mission/controller/AcsController.cpp
@@ -467,7 +467,7 @@ void AcsController::copyMgmData() {
     PoolReadGuard pg(&sensorValues.mgm3Rm3100Set);
     if (pg.getReadResult() == returnvalue::OK) {
       std::memcpy(mgmDataRaw.mgm3Rm3100.value, sensorValues.mgm3Rm3100Set.fieldStrengths.value,
-                  3 + sizeof(float));
+                  3 * sizeof(float));
       mgmDataRaw.mgm3Rm3100.setValid(sensorValues.mgm3Rm3100Set.fieldStrengths.isValid());
     }
   }
diff --git a/tmtc b/tmtc
index 383b3214..00991b92 160000
--- a/tmtc
+++ b/tmtc
@@ -1 +1 @@
-Subproject commit 383b32141c8c382b84c587d6814fe9252dde0b4a
+Subproject commit 00991b92f15425aa80d2448ad304de46a08b5470