diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
index 8bef70e7f3cc6d242e7841bfa2404d182e5235cd..ecaa3f3b1923db4b1d8a274559e0b3ee8494f757 100644
--- a/arch/x86/hyperv/hv_init.c
+++ b/arch/x86/hyperv/hv_init.c
@@ -25,7 +25,7 @@
 #include <linux/vmalloc.h>
 #include <linux/mm.h>
 #include <linux/clockchips.h>
-
+#include <linux/hyperv.h>
 
 #ifdef CONFIG_X86_64