diff --git a/arch/um/sys-x86_64/ksyms.c b/arch/um/sys-x86_64/ksyms.c
index 4d7d1a812d8f..6604673a849d 100644
--- a/arch/um/sys-x86_64/ksyms.c
+++ b/arch/um/sys-x86_64/ksyms.c
@@ -1,5 +1,7 @@
-#include "linux/module.h"
-#include "asm/string.h"
+#include <linux/module.h>
+#include <asm/string.h>
+#include <asm/checksum.h>
 
 /*XXX: we need them because they would be exported by x86_64 */
 EXPORT_SYMBOL(__memcpy);
+EXPORT_SYMBOL(csum_partial);