diff --git a/SConscript b/SConscript
index 4d034927a7..ddca8b057f 100644
--- a/SConscript
+++ b/SConscript
@@ -322,8 +322,6 @@ syscall_emulation_sources = Split('''
 	arch/alpha/alpha_linux_process.cc
 	arch/alpha/alpha_tru64_process.cc
 	cpu/memtest/memtest.cc
-        cpu/trace/opt_cpu.cc
-	cpu/trace/trace_cpu.cc
 	encumbered/eio/eio.cc
 	encumbered/eio/exolex.cc
 	encumbered/eio/libexo.cc