diff --git a/meta-oe/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bbappend b/meta-oe/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bbappend
index c5a87cd..c671d9f 100644
--- a/meta-oe/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bbappend
+++ b/meta-oe/recipes-multimedia/gstreamer/gst-ffmpeg_0.10.13.bbappend
@@ -1,4 +1,4 @@
-PRINC = "1"
+PRINC := "${@int(PRINC) + 2}"
 
 # Build against external libav instead of using the builtin one.
 # On architectures like ARM the libav recipe enables a lot more optimizations