diff --git a/drivers/staging/intel_sst/intel_sst_drv_interface.c b/drivers/staging/intel_sst/intel_sst_drv_interface.c
index 715c2d806242..669e298016f2 100644
--- a/drivers/staging/intel_sst/intel_sst_drv_interface.c
+++ b/drivers/staging/intel_sst/intel_sst_drv_interface.c
@@ -26,6 +26,7 @@
  *  Upper layer interfaces (MAD driver, MMF) to SST driver
  */
 
+#include <linux/delay.h>
 #include <linux/pci.h>
 #include <linux/fs.h>
 #include <linux/firmware.h>