diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index e6d4b08..7aa6007 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -369,7 +369,7 @@
 
 EXPORT_SYMBOL(ec_write);
 
-extern int ec_transaction(u8 command,
+int ec_transaction(u8 command,
                           const u8 *wdata, unsigned wdata_len,
                           u8 *rdata, unsigned rdata_len)
 {