diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 060a361d9d11b09303d901cbfa7dff896d5af1d2..18560d00bcb03c488be642df1e03c4e16a473b9e 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -23,6 +23,7 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/memory.h>
+#include <linux/vmalloc.h>
 
 #include <trace/syscall.h>