diff --git a/lib/radio/ddc/src/ddc.vhd b/lib/radio/ddc/src/ddc.vhd
index 959f213..f24cad1 100644
--- a/lib/radio/ddc/src/ddc.vhd
+++ b/lib/radio/ddc/src/ddc.vhd
@@ -169,8 +169,8 @@ ARCHITECTURE behavior OF ddc IS
 	
 	constant cic_nbits_in			: integer := lo_nbits_out;
 	constant cic_nbits_in_frac		: integer := lo_nbits_out_frac;
-	constant cic_nbits_out			: integer := nbits_out+1;
-	constant cic_nbits_out_frac		: integer := nbits_out_frac+1;
+	constant cic_nbits_out			: integer := nbits_out;
+	constant cic_nbits_out_frac		: integer := nbits_out_frac;
 
 	constant cfir_mul_latency		: integer := 5;
 	constant cfir_ntaps				: integer := 63;