diff --git a/gst-libs/gst/rtp/gstrtcpbuffer.c b/gst-libs/gst/rtp/gstrtcpbuffer.c
index 096f79ec36..bdaf89bfcc 100644
--- a/gst-libs/gst/rtp/gstrtcpbuffer.c
+++ b/gst-libs/gst/rtp/gstrtcpbuffer.c
@@ -163,7 +163,7 @@ gst_rtcp_buffer_validate_data (guint8 * data, guint len)
       goto wrong_length;
 
     /* get padding */
-    pad_bytes = data[len - 1];
+    pad_bytes = data[data_len - 1];
     if (data_len != pad_bytes)
       goto wrong_padding;
   }