diff --git a/cpukit/score/src/kern_ntptime.c b/cpukit/score/src/contrib/kern_ntptime.c
similarity index 100%
rename from cpukit/score/src/kern_ntptime.c
rename to cpukit/score/src/contrib/kern_ntptime.c
diff --git a/cpukit/score/src/kern_tc.c b/cpukit/score/src/contrib/kern_tc.c
similarity index 100%
rename from cpukit/score/src/kern_tc.c
rename to cpukit/score/src/contrib/kern_tc.c
diff --git a/cpukit/score/src/opt_compat.h b/cpukit/score/src/contrib/opt_compat.h
similarity index 100%
rename from cpukit/score/src/opt_compat.h
rename to cpukit/score/src/contrib/opt_compat.h
diff --git a/cpukit/score/src/opt_ffclock.h b/cpukit/score/src/contrib/opt_ffclock.h
similarity index 100%
rename from cpukit/score/src/opt_ffclock.h
rename to cpukit/score/src/contrib/opt_ffclock.h
diff --git a/cpukit/score/src/opt_ntp.h b/cpukit/score/src/contrib/opt_ntp.h
similarity index 100%
rename from cpukit/score/src/opt_ntp.h
rename to cpukit/score/src/contrib/opt_ntp.h
diff --git a/spec/build/cpukit/librtemscpu.yml b/spec/build/cpukit/librtemscpu.yml
index be2d6695e4..057275999e 100644
--- a/spec/build/cpukit/librtemscpu.yml
+++ b/spec/build/cpukit/librtemscpu.yml
@@ -1488,8 +1488,8 @@ source:
 - cpukit/score/src/isrisinprogress.c
 - cpukit/score/src/isrvectortable.c
 - cpukit/score/src/iterateoverthreads.c
-- cpukit/score/src/kern_ntptime.c
-- cpukit/score/src/kern_tc.c
+- cpukit/score/src/contrib/kern_ntptime.c
+- cpukit/score/src/contrib/kern_tc.c
 - cpukit/score/src/libatomic.c
 - cpukit/score/src/log2table.c
 - cpukit/score/src/memoryallocate.c