diff --git a/kernel/x86_64/KERNEL b/kernel/x86_64/KERNEL
index b92f480e9..5da79cc3f 100644
--- a/kernel/x86_64/KERNEL
+++ b/kernel/x86_64/KERNEL
@@ -489,3 +489,6 @@ XGEMM3MKERNEL    =  xgemm3m_kernel_2x2.S
 
 SSUMKERNEL = ../arm/sum.c
 DSUMKERNEL = ../arm/sum.c
+
+SOMATCOPY_RT = omatcopy_rt.c
+DOMATCOPY_RT = omatcopy_rt.c