diff --git a/sound/soc/codecs/hdmi.c b/sound/soc/codecs/hdmi.c
index 9cb1c7d3e1dc..1087fd5f9917 100644
--- a/sound/soc/codecs/hdmi.c
+++ b/sound/soc/codecs/hdmi.c
@@ -20,6 +20,7 @@
  */
 #include <linux/module.h>
 #include <sound/soc.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 
 #define DRV_NAME "hdmi-audio-codec"