diff --git a/src/core/linux/SDL_ibus.c b/src/core/linux/SDL_ibus.c
index 0a44809..5def7e6 100644
--- a/src/core/linux/SDL_ibus.c
+++ b/src/core/linux/SDL_ibus.c
@@ -45,7 +45,7 @@
 static SDL_Rect ibus_cursor_rect = { 0, 0, 0, 0 };
 static DBusConnection *ibus_conn = NULL;
 static char *ibus_addr_file = NULL;
-int inotify_fd = -1, inotify_wd = -1;
+static int inotify_fd = -1, inotify_wd = -1;
 
 static Uint32
 IBus_ModState(void)