diff --git a/Trigger/TrigAlgorithms/TrigT2CaloCommon/CMakeLists.txt b/Trigger/TrigAlgorithms/TrigT2CaloCommon/CMakeLists.txt
index 38fcdcf5050143c9182c205a283cc750f337bcb1..474bc0813b9d5471553de38de677b29f0927e5b7 100644
--- a/Trigger/TrigAlgorithms/TrigT2CaloCommon/CMakeLists.txt
+++ b/Trigger/TrigAlgorithms/TrigT2CaloCommon/CMakeLists.txt
@@ -5,6 +5,7 @@ atlas_subdir( TrigT2CaloCommon )
 
 # External dependencies:
 find_package( tdaq-common )
+find_package( TBB )
 
 # Component(s) in the package:
 atlas_add_library( TrigT2CaloCommonLib