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-rw-r--r--include/asterisk/image.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asterisk/image.h b/include/asterisk/image.h
index 56e080ece..32953363e 100644
--- a/include/asterisk/image.h
+++ b/include/asterisk/image.h
@@ -68,7 +68,7 @@ extern int ast_send_image(struct ast_channel *chan, char *filename);
* Make an image from a filename ??? No estoy positivo
* Returns an ast_frame on success, NULL on failure
*/
-extern struct ast_frame *ast_read_image(char *filename, char *preflang, int format);
+extern struct ast_frame *ast_read_image(char *filename, const char *preflang, int format);
/*! Register image format */
/*!