diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index deded114dffd..ed53265d1f63 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -3,6 +3,7 @@
 
 #include <linux/linkage.h>
 #include <linux/fs.h>
+#include <linux/ktime.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/kallsyms.h>