diff --git a/gst/isomp4/gstqtmux.c b/gst/isomp4/gstqtmux.c
index e83095a0f7..7f20f44f61 100644
--- a/gst/isomp4/gstqtmux.c
+++ b/gst/isomp4/gstqtmux.c
@@ -3555,6 +3555,8 @@ gst_qt_mux_audio_sink_set_caps (GstQTPad * qtpad, GstCaps * caps)
         entry.fourcc = FOURCC_sowt;
       else if (info.finfo->endianness == G_BIG_ENDIAN)
         entry.fourcc = FOURCC_twos;
+      else
+        entry.fourcc = FOURCC_sowt;
       /* maximum backward compatibility; only new version for > 16 bit */
       if (info.finfo->depth <= 16)
         entry.version = 0;
diff --git a/gst/isomp4/gstqtmuxmap.c b/gst/isomp4/gstqtmuxmap.c
index 006f16d33c..1a8b6cec09 100644
--- a/gst/isomp4/gstqtmuxmap.c
+++ b/gst/isomp4/gstqtmuxmap.c
@@ -97,15 +97,11 @@
   COMMON_AUDIO_CAPS (2, MAX)
 
 #define PCM_CAPS_FULL \
-  PCM_CAPS "; " \
   "audio/x-raw, " \
-  "format = (string) { S24LE, S24BE }, " \
+  "format = (string) { S32LE, S32BE, S24LE, S24BE }, " \
   "layout = (string) interleaved, " \
   COMMON_AUDIO_CAPS (2, MAX) "; " \
-  "audio/x-raw, " \
-  "format = (string) { S32LE, S32BE }, " \
-  "layout = (string) interleaved, " \
-  COMMON_AUDIO_CAPS (2, MAX)
+  PCM_CAPS
 
 #define MP3_CAPS \
   "audio/mpeg, " \