diff --git a/mission/controller/acs/Guidance.cpp b/mission/controller/acs/Guidance.cpp
index fe0ba4dd..bf834d12 100644
--- a/mission/controller/acs/Guidance.cpp
+++ b/mission/controller/acs/Guidance.cpp
@@ -460,13 +460,13 @@ void Guidance::targetRotationRate(const int8_t timeElapsedMax, const double time
   if (VectorOperations<double>::norm(savedQuaternion, 4) == 0) {
     std::memcpy(savedQuaternion, quatInertialTarget, sizeof(savedQuaternion));
   }
-  if (timeDelta < timeElapsedMax) {
+  if (timeDelta < timeElapsedMax and timeDelta != 0.0) {
     double q[4] = {0, 0, 0, 0}, qS[4] = {0, 0, 0, 0};
     QuaternionOperations::inverse(quatInertialTarget, q);
     QuaternionOperations::inverse(savedQuaternion, qS);
     double qDiff[4] = {0, 0, 0, 0};
     VectorOperations<double>::subtract(q, qS, qDiff, 4);
-    VectorOperations<double>::mulScalar(qDiff, 1 / timeDelta, qDiff, 4);
+    VectorOperations<double>::mulScalar(qDiff, 1. / timeDelta, qDiff, 4);
 
     double tgtQuatVec[3] = {q[0], q[1], q[2]};
     double qDiffVec[3] = {qDiff[0], qDiff[1], qDiff[2]};