diff --git a/obexd/client/session.c b/obexd/client/session.c
index 42eba10..57a5b06 100644
--- a/obexd/client/session.c
+++ b/obexd/client/session.c
@@ -111,7 +111,7 @@ static void transfer_progress(struct obc_transfer *transfer,
 					gint64 transferred, GError *err,
 					void *user_data);
 
-GQuark obex_io_error_quark(void)
+static GQuark obex_io_error_quark(void)
 {
 	return g_quark_from_static_string("obex-io-error-quark");
 }
diff --git a/obexd/client/session.h b/obexd/client/session.h
index f082510..a19b31f 100644
--- a/obexd/client/session.h
+++ b/obexd/client/session.h
@@ -27,9 +27,6 @@
 
 struct obc_session;
 
-#define OBEX_IO_ERROR obex_io_error_quark()
-GQuark obex_io_error_quark(void);
-
 typedef void (*session_callback_t) (struct obc_session *session,
 					GError *err, void *user_data);