diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index cb666c73712d..8bc8016c173d 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -6080,18 +6080,17 @@ static int snd_hdspm_open(struct snd_pcm_substream *substream)
 					     SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
 					     32, 4096);
 		/* RayDAT & AIO have a fixed buffer of 16384 samples per channel */
-		snd_pcm_hw_constraint_minmax(runtime,
+		snd_pcm_hw_constraint_single(runtime,
 					     SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
-					     16384, 16384);
+					     16384);
 		break;
 
 	default:
 		snd_pcm_hw_constraint_minmax(runtime,
 					     SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
 					     64, 8192);
-		snd_pcm_hw_constraint_minmax(runtime,
-					     SNDRV_PCM_HW_PARAM_PERIODS,
-					     2, 2);
+		snd_pcm_hw_constraint_single(runtime,
+					     SNDRV_PCM_HW_PARAM_PERIODS, 2);
 		break;
 	}