diff --git a/common/ratp/ratp.c b/common/ratp/ratp.c
index fae9cec..9aea178 100644
--- a/common/ratp/ratp.c
+++ b/common/ratp/ratp.c
@@ -72,7 +72,7 @@
 }
 EXPORT_SYMBOL(register_ratp_command);
 
-struct ratp_command *find_ratp_request(uint16_t request_id)
+static struct ratp_command *find_ratp_request(uint16_t request_id)
 {
 	struct ratp_command *cmdtp;