diff --git a/lib_dec/ivas_core_dec_fx.c b/lib_dec/ivas_core_dec_fx.c
index 588640d0a4b0ff6ea5179c1e0bf19ff5544517e6..03f0e4b40a7904afa92be4f0e71e70df0845e214 100644
--- a/lib_dec/ivas_core_dec_fx.c
+++ b/lib_dec/ivas_core_dec_fx.c
@@ -73,6 +73,8 @@ ivas_error ivas_core_dec_fx(
     Word16 tmp16, tmp16_2, j;
     Word16 Q_white_exc;
 
+    set16_fx( tmp_buffer_fx, 0, L_FRAME48k );
+
     Word16 tmps, incr;
     Word32 bwe_exc_extended_fx[CPE_CHANNELS][L_FRAME32k + NL_BUFF_OFFSET];