diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2520559..25abe5c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,7 +29,7 @@ INCLUDE_DIRECTORIES( SYSTEM ${Marlin_INCLUDE_DIRS} )
 LINK_LIBRARIES( ${Marlin_LIBRARIES} )
 ADD_DEFINITIONS( ${Marlin_DEFINITIONS} )
 
-FIND_PACKAGE( MarlinTrk )
+FIND_PACKAGE( MarlinTrk REQUIRED )
 INCLUDE_DIRECTORIES( SYSTEM ${MarlinTrk_INCLUDE_DIRS} )
 LINK_LIBRARIES( ${MarlinTrk_LIBRARIES} )
 ADD_DEFINITIONS( ${MarlinTrk_DEFINITIONS} )