diff --git a/include/hw/registerfields.h b/include/hw/registerfields.h
index f59e7f47bd..44e0b94edf 100644
--- a/include/hw/registerfields.h
+++ b/include/hw/registerfields.h
@@ -11,6 +11,8 @@
 #ifndef REGISTERFIELDS_H
 #define REGISTERFIELDS_H
 
+#include <qemu/bitops.h>
+
 /* Define constants for a 32 bit register */
 
 /* This macro will define A_FOO, for the byte address of a register