diff --git a/ext/libav/gstavcodecmap.c b/ext/libav/gstavcodecmap.c
index 3d64291675..c67c1f0d64 100644
--- a/ext/libav/gstavcodecmap.c
+++ b/ext/libav/gstavcodecmap.c
@@ -2568,7 +2568,7 @@ gst_ffmpeg_caps_to_pixfmt (const GstCaps * caps,
       break;
   }
 
-  s = gst_structure_get_string (structure, "interlaced-mode");
+  s = gst_structure_get_string (structure, "interlace-mode");
   if (s) {
     if (strcmp (s, "progressive") == 0) {
       context->field_order = AV_FIELD_PROGRESSIVE;