diff --git a/SAS/ResourceAssignment/ResourceAssignmentDatabase/tests/CMakeLists.txt b/SAS/ResourceAssignment/ResourceAssignmentDatabase/tests/CMakeLists.txt
index 439c9ccb70041b11f720e5bdb0aaebdd9b4f2a6b..78f68de2997edbfd4589d858d6873525da589008 100644
--- a/SAS/ResourceAssignment/ResourceAssignmentDatabase/tests/CMakeLists.txt
+++ b/SAS/ResourceAssignment/ResourceAssignmentDatabase/tests/CMakeLists.txt
@@ -4,6 +4,7 @@ include(FindPythonModule)
 
 find_python_module(testing.postgresql)
 find_python_module(mock)
+find_python_module(dateutil)
 
 lofar_add_test(t_radb)