diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c
index 4c322da..008058a 100644
--- a/drivers/acpi/resources/rscreate.c
+++ b/drivers/acpi/resources/rscreate.c
@@ -335,7 +335,7 @@
 		/* Now align the current length */
 
 		user_prt->length =
-		    (u32) ACPI_ROUND_UP_to_64_bIT(user_prt->length);
+		    (u32) ACPI_ROUND_UP_TO_64BIT(user_prt->length);
 
 		/* 4) Fourth subobject: Dereference the PRT.source_index */