diff --git a/mission/controller/acs/Guidance.cpp b/mission/controller/acs/Guidance.cpp
index 9ac7b5e9..d7e8fe26 100644
--- a/mission/controller/acs/Guidance.cpp
+++ b/mission/controller/acs/Guidance.cpp
@@ -421,7 +421,11 @@ void Guidance::comparePtg(double currentQuat[4], double currentSatRotRate[3], do
   errorAngle = QuaternionOperations::getAngle(errorQuat, true);
 
   // Calculate error satellite rotational rate
-  // First combine the target and reference satellite rotational rates
+  // Convert target rotational rate into body RF
+  double errorQuatInv[4] = {0, 0, 0, 0}, targetSatRotRateB[3] = {0, 0, 0};
+  QuaternionOperations::inverse(errorQuat, errorQuatInv);
+  QuaternionOperations::multiplyVector(errorQuat, targetSatRotRate, targetSatRotRateB);
+  // Combine the target and reference satellite rotational rates
   double combinedRefSatRotRate[3] = {0, 0, 0};
   VectorOperations<double>::add(targetSatRotRate, refSatRotRate, combinedRefSatRotRate, 3);
   // Then subtract the combined required satellite rotational rates from the actual rate