diff --git a/mission/controller/acs/control/SafeCtrl.cpp b/mission/controller/acs/control/SafeCtrl.cpp
index e6b45318..23a86551 100644
--- a/mission/controller/acs/control/SafeCtrl.cpp
+++ b/mission/controller/acs/control/SafeCtrl.cpp
@@ -95,11 +95,12 @@ ReturnValue_t SafeCtrl::safeNoMekf(timeval now, double *susDirB, bool susDirBVal
   }
 
   // change unit from uT to T
-  VectorOperations<double>::mulScalar(magFieldB, 1e-6, magFieldB, 3);
+  double magFieldBT[3] = {0,0,0};
+  VectorOperations<double>::mulScalar(magFieldB, 1e-6, magFieldBT, 3);
 
   // normalize sunDir and magDir
   double magDirB[3] = {0, 0, 0};
-  VectorOperations<double>::normalize(magFieldB, magDirB, 3);
+  VectorOperations<double>::normalize(magFieldBT, magDirB, 3);
   VectorOperations<double>::normalize(susDirB, susDirB, 3);
 
   // Cosinus angle between sunDir and magDir
@@ -160,8 +161,8 @@ ReturnValue_t SafeCtrl::safeNoMekf(timeval now, double *susDirB, bool susDirBVal
   // Magnetic moment
   double magMomB[3] = {0, 0, 0};
   double crossMagFieldTorque[3] = {0, 0, 0};
-  VectorOperations<double>::cross(magFieldB, torqueB, crossMagFieldTorque);
-  double magMomFactor = pow(VectorOperations<double>::norm(magFieldB, 3), 2);
+  VectorOperations<double>::cross(magFieldBT, torqueB, crossMagFieldTorque);
+  double magMomFactor = pow(VectorOperations<double>::norm(magFieldBT, 3), 2);
   VectorOperations<double>::mulScalar(crossMagFieldTorque, 1 / magMomFactor, magMomB, 3);
 
   std::memcpy(outputMagMomB, magMomB, 3 * sizeof(double));