diff --git a/src/switch_ivr.c b/src/switch_ivr.c
index ccde21c019..a8721dcb89 100644
--- a/src/switch_ivr.c
+++ b/src/switch_ivr.c
@@ -1547,12 +1547,14 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_digit_stream_parser_del_event(switch_
 SWITCH_DECLARE(void *) switch_ivr_digit_stream_parser_feed(switch_ivr_digit_stream_parser_t *parser, switch_ivr_digit_stream_t *stream, char digit)
 {
 	void *result = NULL;
-	switch_size_t len = strlen(stream->digits);
+	switch_size_t len;
 
 	switch_assert(parser);
 	switch_assert(stream);
 	switch_assert(stream->digits);
 
+	len = strlen(stream->digits);
+
 	/* handle new digit arrivals */
 	if (digit) {
 		/* if it's not a terminator digit, add it to the collected digits */