diff --git a/airdata/WindEstimator.hpp b/airdata/WindEstimator.hpp
index b5292ef87c..61a1f1b6b4 100644
--- a/airdata/WindEstimator.hpp
+++ b/airdata/WindEstimator.hpp
@@ -39,6 +39,7 @@
 #pragma once
 
 #include <mathlib/mathlib.h>
+#include <matrix/math.hpp>
 
 class WindEstimator
 {
diff --git a/l1/ecl_l1_pos_controller.h b/l1/ecl_l1_pos_controller.h
index 3f28c31f8d..e9df28e5dc 100644
--- a/l1/ecl_l1_pos_controller.h
+++ b/l1/ecl_l1_pos_controller.h
@@ -61,6 +61,7 @@
 #define ECL_L1_POS_CONTROLLER_H
 
 #include <mathlib/mathlib.h>
+#include <matrix/math.hpp>
 #include <geo/geo.h>
 #include <ecl/ecl.h>
 
diff --git a/tecs/tecs.h b/tecs/tecs.h
index 1a0dec3ffe..e3d7283d7a 100644
--- a/tecs/tecs.h
+++ b/tecs/tecs.h
@@ -40,6 +40,7 @@
 #pragma once
 
 #include <mathlib/mathlib.h>
+#include <matrix/math.hpp>
 
 class __EXPORT TECS
 {