diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index d8703d7dfd0a..b500655f7937 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -15,6 +15,7 @@
 #include <linux/math64.h>
 #include <linux/sizes.h>
 #include <linux/slab.h>
+#include <linux/delay.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/of_platform.h>