diff --git a/gr-jay/lib/preamble_sync_impl.cc b/gr-jay/lib/preamble_sync_impl.cc
index 4888061..40a2f70 100644
--- a/gr-jay/lib/preamble_sync_impl.cc
+++ b/gr-jay/lib/preamble_sync_impl.cc
@@ -214,7 +214,7 @@ int preamble_sync_impl::general_work (int noutput_items, gr_vector_int &ninput_i
 	
 	bufferWi += j;
 	
-	if (bufferWi >= sizeof(buffer)/2)
+	if (bufferWi >= 4)
 	{
 		size_t numProcessed = dec.process(buffer, bufferWi);
 		bufferWi -= numProcessed;