diff --git a/source/RobotAPI/libraries/armem_objects/server/instance/Segment.cpp b/source/RobotAPI/libraries/armem_objects/server/instance/Segment.cpp
index 63d449148e658e47187bb24f4220c5339c925e13..06dd140ed2152258f8aeccd7e1e984a4f6dd10e2 100644
--- a/source/RobotAPI/libraries/armem_objects/server/instance/Segment.cpp
+++ b/source/RobotAPI/libraries/armem_objects/server/instance/Segment.cpp
@@ -25,6 +25,7 @@
 #include <ArmarXCore/core/system/cmake/CMakePackageFinder.h>
 
 #include <SimoxUtility/math/pose/pose.h>
+#include <SimoxUtility/json.h>
 
 #include <Eigen/Geometry>