diff --git a/ntoskrnl/ntos.cmake b/ntoskrnl/ntos.cmake
index b815c62565a..79317e880db 100644
--- a/ntoskrnl/ntos.cmake
+++ b/ntoskrnl/ntos.cmake
@@ -390,6 +390,9 @@ if(NOT _WINKD_)
             list(APPEND ASM_SOURCE ${REACTOS_SOURCE_DIR}/ntoskrnl/kdbg/i386/kdb_help.S)
             list(APPEND SOURCE ${REACTOS_SOURCE_DIR}/ntoskrnl/kdbg/i386/i386-dis.c)
         endif()
+    elseif(ARCH STREQUAL "amd64")
+        list(APPEND SOURCE
+            ${REACTOS_SOURCE_DIR}/ntoskrnl/kd/i386/kdbg.c)
     elseif(ARCH STREQUAL "arm")
         list(APPEND SOURCE ${REACTOS_SOURCE_DIR}/ntoskrnl/kd/arm/kdbg.c)
     endif()