diff --git a/ext/directfb/dfbvideosink.c b/ext/directfb/dfbvideosink.c
index 5daec12fd5..e2f8e8d618 100644
--- a/ext/directfb/dfbvideosink.c
+++ b/ext/directfb/dfbvideosink.c
@@ -2252,7 +2252,7 @@ gst_dfbvideosink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
   GstBufferPool *pool;
   GstCaps *caps;
   gboolean need_pool;
-  guint size;
+  guint size = 0;
 
   dfbvideosink = GST_DFBVIDEOSINK (bsink);