diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 8bcfaa4..fccd8b5 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -182,7 +182,8 @@
 extern int ec_write(u8 addr, u8 val);
 extern int ec_transaction(u8 command,
                           const u8 *wdata, unsigned wdata_len,
-                          u8 *rdata, unsigned rdata_len);
+                          u8 *rdata, unsigned rdata_len,
+			  int force_poll);
 
 #endif /*CONFIG_ACPI_EC*/