diff --git a/CMakeModules/FindSimGear.cmake b/CMakeModules/FindSimGear.cmake
index 249afb3bc..b8c446bba 100644
--- a/CMakeModules/FindSimGear.cmake
+++ b/CMakeModules/FindSimGear.cmake
@@ -117,6 +117,7 @@ if(${SIMGEAR_LIBRARIES} STREQUAL "SIMGEAR_LIBRARIES-NOTFOUND")
   # linker such as GNU ld on Linux
     set(comps 
         ephem
+        tsync
         environment
         nasal
         sky