diff --git a/include/linux/aer.h b/include/linux/aer.h
index c826d1c28f9c..4fef65e57023 100644
--- a/include/linux/aer.h
+++ b/include/linux/aer.h
@@ -7,6 +7,8 @@
 #ifndef _AER_H_
 #define _AER_H_
 
+#include <linux/types.h>
+
 #define AER_NONFATAL			0
 #define AER_FATAL			1
 #define AER_CORRECTABLE			2