diff --git a/main/dsp.c b/main/dsp.c
index fdea748fd49bbbceb9012a7d2ef3bd8d1ad115bd..91eea6c9dacd44540316901cbbeb83078447bdbf 100644
--- a/main/dsp.c
+++ b/main/dsp.c
@@ -631,7 +631,7 @@ static int v21_detect(struct ast_dsp *dsp, v21_detect_state_t *s, int16_t *amp,
 		}
 
 		if (hit) {
-			if (s->miss_count == 3) {
+			if (s->miss_count == 3 || (s->hit_count == 1 && s->miss_count == 2)) {
 				s->hit_count++;
 			} else {
 				s->hit_count = 1;