diff --git a/include/asterisk/file.h b/include/asterisk/file.h
index f2b9766b79..9edfcaa73d 100755
--- a/include/asterisk/file.h
+++ b/include/asterisk/file.h
@@ -25,7 +25,7 @@ extern "C" {
 
 
 /*! Convenient for waiting */
-#define AST_DIGIT_ANY "0123456789#*"
+#define AST_DIGIT_ANY "0123456789#*ABCD"
 
 #define SEEK_FORCECUR	10