diff --git a/samples/boards/96b_argonkey/microphone/src/main.c b/samples/boards/96b_argonkey/microphone/src/main.c
index 5ef83a56c6a..90f2c782d0f 100644
--- a/samples/boards/96b_argonkey/microphone/src/main.c
+++ b/samples/boards/96b_argonkey/microphone/src/main.c
@@ -154,6 +154,12 @@ void main(void)
 
 	signal_sampling_stopped();
 
+	ret = dmic_trigger(mic_dev, DMIC_TRIGGER_STOP);
+	if (ret < 0) {
+		printk("microphone stop trigger error\n");
+		return;
+	}
+
 	/* print PCM stream */
 #ifdef PCM_OUTPUT_IN_ASCII
 	printk("-- start\n");