1 files changed, 2 insertions, 2 deletions

diff --git a/apps/talk.h b/apps/talk.h
index c4c8bc7285..09d71866b0 100644
--- a/apps/talk.h
+++ b/apps/talk.h
@@ -55,8 +55,8 @@ enum {
 #define STR(id) ID2P(id), id
 
 /* publish this string, so it's stored only once (better than #define) */
-extern const char* const dir_thumbnail_name;
-
+extern const char* const dir_thumbnail_name; /* "_dirname.talk" */
+#define TALK_EXT ".talk" /* extra extension for file voicing */
 
 void talk_init(void);
 int talk_buffer_steal(void); /* claim the mp3 buffer e.g. for play/record */