diff --git a/RTCP/Cobalt/OutputProc/CMakeLists.txt b/RTCP/Cobalt/OutputProc/CMakeLists.txt
index 8f16d1b5f8c4b62a83ab8f62b4862201eeb778ac..16c962e801ae794eb21528d4e8f989ce1efe23ac 100644
--- a/RTCP/Cobalt/OutputProc/CMakeLists.txt
+++ b/RTCP/Cobalt/OutputProc/CMakeLists.txt
@@ -7,6 +7,7 @@ include(LofarFindPackage)
 lofar_find_package(OpenMP REQUIRED)
 lofar_find_package(Boost REQUIRED)
 lofar_find_package(Casacore COMPONENTS casa ms tables REQUIRED)
+lofar_find_package(DAL REQUIRED)
 # Skip explicit lofar_find_package(HDF5 REQUIRED) needed for casacore and DAL.
 # On RHEL/CentOS 7 an explicit find HDF5 returns into OutputProc:
 #   -D_BSD_SOURCE -D_FORTIFY_SOURCE=2 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE