diff --git a/src/kernel/libroot/os/arch/x86/Jamfile b/src/kernel/libroot/os/arch/x86/Jamfile
index b21be2b8c9..fafee12999 100644
--- a/src/kernel/libroot/os/arch/x86/Jamfile
+++ b/src/kernel/libroot/os/arch/x86/Jamfile
@@ -14,7 +14,7 @@ KernelMergeObject os_arch_$(OBOS_ARCH).o :
 
 MergeObjectFromObjects kernel_os_arch_$(OBOS_ARCH).o :
 	<$(SOURCE_GRIST)>atomic.o
-	<$(SOURCE_GRIST)>byteorder.S
+	<$(SOURCE_GRIST)>byteorder.o
 	<$(SOURCE_GRIST)>cpuid.o
 	<$(SOURCE_GRIST)>system_time.o
 	;