diff --git a/gst-libs/gst/rtp/gstbasertppayload.c b/gst-libs/gst/rtp/gstbasertppayload.c
index ed5acccea4..65c283fe03 100644
--- a/gst-libs/gst/rtp/gstbasertppayload.c
+++ b/gst-libs/gst/rtp/gstbasertppayload.c
@@ -571,7 +571,7 @@ gst_basertppayload_set_outcaps (GstBaseRTPPayload * payload, gchar * fieldname,
       payload->priv->caps_max_ptime = max_ptime * GST_MSECOND;
 
     if (gst_structure_get_int (s, "ptime", &ptime) && ptime > 0)
-      payload->abidata.ABI.ptime = ptime;
+      payload->abidata.ABI.ptime = ptime * GST_MSECOND;
 
     if (gst_structure_get_int (s, "payload", &pt)) {
       /* use peer pt */
diff --git a/gst-libs/gst/rtp/gstbasertppayload.h b/gst-libs/gst/rtp/gstbasertppayload.h
index 1591c104e1..4802ae88d8 100644
--- a/gst-libs/gst/rtp/gstbasertppayload.h
+++ b/gst-libs/gst/rtp/gstbasertppayload.h
@@ -113,7 +113,7 @@ struct _GstBaseRTPPayload
 
   union  {
     struct {
-      guint ptime; /* in ms */
+      guint64 ptime; /* in ns */
     } ABI;
     gpointer _gst_reserved[GST_PADDING - (sizeof(guint64)/sizeof(gpointer)) - 1];
   } abidata;