diff --git a/Generators/HforTool/CMakeLists.txt b/Generators/HforTool/CMakeLists.txt
index 702614a39a6706f721368704b239627632880d62..267ec0bdf5678159f23e3599587e8ecb359ae1a2 100644
--- a/Generators/HforTool/CMakeLists.txt
+++ b/Generators/HforTool/CMakeLists.txt
@@ -13,6 +13,7 @@ atlas_depends_on_subdirs( PUBLIC
                           Reconstruction/Jet/JetEvent
                           PRIVATE
                           Control/StoreGate
+                          Generators/TruthUtils
                           Generators/GeneratorObjects
                           Generators/GenInterfaces )