diff --git a/gst/y4m/gsty4mencode.c b/gst/y4m/gsty4mencode.c
index 0f1854bc10..f4e10644a7 100644
--- a/gst/y4m/gsty4mencode.c
+++ b/gst/y4m/gsty4mencode.c
@@ -26,7 +26,7 @@
 #include <gst/video/video.h>
 #include "gsty4mencode.h"
 
-static GstElementDetails y4mencode_details =
+static const GstElementDetails y4mencode_details =
 GST_ELEMENT_DETAILS ("YUV4MPEG video encoder",
     "Codec/Encoder/Video",
     "Encodes a YUV frame into the yuv4mpeg format (mjpegtools)",