diff --git a/External/SPEC/SpecCPU2017.cmake b/External/SPEC/SpecCPU2017.cmake
--- a/External/SPEC/SpecCPU2017.cmake
+++ b/External/SPEC/SpecCPU2017.cmake
@@ -274,6 +274,7 @@
     add_executable(${VALIDATOR} ${_validator_sources})
     target_link_libraries(${VALIDATOR} m)
     set_target_properties(${VALIDATOR} PROPERTIES COMPILE_FLAGS "-DSPEC")
+    add_dependencies(${VALIDATOR} build-timeit)
     add_dependencies(${VALIDATOR} build-timeit-target)
   endif ()
 
@@ -345,6 +346,8 @@
   endif ()
 
   llvm_test_executable(${PROG} ${_sources})
+  add_dependencies(${PROG} build-timeit)
+  add_dependencies(${PROG} build-timeit-target)
 
   if (TARGET ${VALIDATOR})
     add_dependencies(${PROG} ${VALIDATOR})