diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 58c3f74..6512b20 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -89,7 +89,7 @@
 	unsigned long long state;
 };
 
-#define to_acpi_ac(x) container_of(x, struct acpi_ac, charger);
+#define to_acpi_ac(x) container_of(x, struct acpi_ac, charger)
 
 #ifdef CONFIG_ACPI_PROCFS_POWER
 static const struct file_operations acpi_ac_fops = {