diff --git a/src/driver/sfrt_driver_ctx.c b/src/driver/sfrt_driver_ctx.c
index d1b5483..59ee7e2 100644
--- a/src/driver/sfrt_driver_ctx.c
+++ b/src/driver/sfrt_driver_ctx.c
@@ -79,7 +79,7 @@ static struct sfrt_driver_ctx_impl * sfrt_driver_ctx_alloc(
 	return &ictx->ctx;
 }
 
-int sfrt_get_driver_ctx_fail(struct argv_meta * meta)
+static int sfrt_get_driver_ctx_fail(struct argv_meta * meta)
 {
 	argv_free(meta);
 	return -1;