diff --git a/arch/sim/src/sim/posix/sim_alsa.c b/arch/sim/src/sim/posix/sim_alsa.c
index 9d54ea353fa..bf6fc06e752 100644
--- a/arch/sim/src/sim/posix/sim_alsa.c
+++ b/arch/sim/src/sim/posix/sim_alsa.c
@@ -340,6 +340,17 @@ static int sim_audio_getcaps(struct audio_lowerhalf_s *dev, int type,
               caps->ac_controls.b[0] = AUDIO_SUBFMT_PCM_MP3;
               caps->ac_controls.b[1] = AUDIO_SUBFMT_END;
               break;
+            case AUDIO_FMT_PCM:
+              if (priv->offload)
+                {
+                  caps->ac_controls.b[0] = AUDIO_SUBFMT_END;
+                }
+              else
+                {
+                  caps->ac_controls.b[0] = AUDIO_SUBFMT_PCM_S16_LE;
+                  caps->ac_controls.b[1] = AUDIO_SUBFMT_END;
+                }
+              break;
             default:
               caps->ac_controls.b[0] = AUDIO_SUBFMT_END;
               break;