diff --git a/subprojects/gst-plugins-good/gst/matroska/matroska-demux.c b/subprojects/gst-plugins-good/gst/matroska/matroska-demux.c
index 9e0de058e6..2ed77b50d0 100644
--- a/subprojects/gst-plugins-good/gst/matroska/matroska-demux.c
+++ b/subprojects/gst-plugins-good/gst/matroska/matroska-demux.c
@@ -3976,7 +3976,7 @@ gst_matroska_demux_add_wvpk_header (GstElement * element,
     data += 4;
     size -= 4;
 
-    while (size > 12) {
+    while (size >= 12) {
       flags = GST_READ_UINT32_LE (data);
       data += 4;
       size -= 4;