diff --git a/qt6-after/qt6-migrated-legatus/Lts/Proxies/TrainingAreaBase/Plugins/CMakeLists.txt b/qt6-after/qt6-migrated-legatus/Lts/Proxies/TrainingAreaBase/Plugins/CMakeLists.txt
index 6432891c2..24c8fda1e 100755
--- a/qt6-after/qt6-migrated-legatus/Lts/Proxies/TrainingAreaBase/Plugins/CMakeLists.txt
+++ b/qt6-after/qt6-migrated-legatus/Lts/Proxies/TrainingAreaBase/Plugins/CMakeLists.txt
@@ -32,7 +32,10 @@ IF (BUILD_SVC_HLA)
 ENDIF()
 
 
+# AdlerJson depends on svcPdmClient (ProjectDataManagement) which is not in release scope
+IF(NOT RELEASE_BUILD)
 ADD_SUBDIRECTORY(AdlerJson)
+ENDIF()
 
 
 OPTION(BUILD_UAS_PROXY "Build the UAS TAB Plugin (default: OFF) [needs BUILD_SV = ON and UNIX-like OS]" OFF) # TODO: use 'pname = guez' if done