diff --git a/ldpc_decoder.hh b/ldpc_decoder.hh
index 837db0d..010ae96 100644
--- a/ldpc_decoder.hh
+++ b/ldpc_decoder.hh
@@ -162,7 +162,7 @@ class LDPCDecoder
 
 					TYPE out = vsign(other(mag, min0, min1), mine(signs, inp));
 
-					out = vclamp(out, -32, 31);
+					out = vclamp(out, -31, 31);
 
 					out = selfcorr(bl[k], out);