diff --git a/src/opus_encoder.c b/src/opus_encoder.c
index 5c74535e4c8076bba3aaf51c34fe09247335d901..ac40edac7c742f1bf5528b0c30d398f8002421e5 100644
--- a/src/opus_encoder.c
+++ b/src/opus_encoder.c
@@ -346,7 +346,7 @@ static void silk_biquad_float(
 
         S[ 0 ] = S[1] - vout*A[0] + B[1]*inval;
 
-        S[ 1 ] = - vout*A[1] + B[2]*inval;
+        S[ 1 ] = - vout*A[1] + B[2]*inval + VERY_SMALL;
 
         /* Scale back to Q0 and saturate */
         out[ k*stride ] = vout;