diff --git a/mission/controller/acs/Igrf13Model.h b/mission/controller/acs/Igrf13Model.h
index 774d6c58..9a7feb34 100644
--- a/mission/controller/acs/Igrf13Model.h
+++ b/mission/controller/acs/Igrf13Model.h
@@ -16,11 +16,11 @@
 #ifndef IGRF13MODEL_H_
 #define IGRF13MODEL_H_
 
+#include <fsfw/src/fsfw/globalfunctions/TimeSystems.h>
 #include <fsfw/src/fsfw/globalfunctions/constants.h>
 #include <fsfw/src/fsfw/globalfunctions/math/MatrixOperations.h>
 #include <fsfw/src/fsfw/globalfunctions/math/QuaternionOperations.h>
 #include <fsfw/src/fsfw/globalfunctions/math/VectorOperations.h>
-#include <fsfw/src/fsfw/globalfunctions/timeSystems.h>
 
 #include <cmath>
 
diff --git a/mission/controller/acs/SensorProcessing.h b/mission/controller/acs/SensorProcessing.h
index 35d3ae6d..e5efba71 100644
--- a/mission/controller/acs/SensorProcessing.h
+++ b/mission/controller/acs/SensorProcessing.h
@@ -4,11 +4,11 @@
 #include <common/config/eive/resultClassIds.h>
 #include <fsfw/coordinates/CoordinateTransformations.h>
 #include <fsfw/datapool/PoolReadGuard.h>
+#include <fsfw/globalfunctions/TimeSystems.h>
 #include <fsfw/globalfunctions/constants.h>
 #include <fsfw/globalfunctions/math/MatrixOperations.h>
 #include <fsfw/globalfunctions/math/QuaternionOperations.h>
 #include <fsfw/globalfunctions/math/VectorOperations.h>
-#include <fsfw/globalfunctions/timeSystems.h>
 #include <fsfw/globalfunctions/timevalOperations.h>
 #include <fsfw/returnvalues/returnvalue.h>
 #include <mission/acs/defs.h>