diff --git a/lib/src/phy/fec/viterbi.c b/lib/src/phy/fec/viterbi.c
index a010dfebb..a7b861c23 100644
--- a/lib/src/phy/fec/viterbi.c
+++ b/lib/src/phy/fec/viterbi.c
@@ -40,7 +40,7 @@
 
 #define TB_ITER 3
 
-#define DEFAULT_GAIN 100
+#define DEFAULT_GAIN 128
 
 
 //#undef LV_HAVE_SSE