diff --git a/lib_dec/ivas_stereo_td_dec.c b/lib_dec/ivas_stereo_td_dec.c
index 129857e0d71f4f6cd28d67af48548cac7984e50d..83b6d67a4c76ec863b09bab8bc2f53f55653f900 100644
--- a/lib_dec/ivas_stereo_td_dec.c
+++ b/lib_dec/ivas_stereo_td_dec.c
@@ -151,13 +151,22 @@ void tdm_configure_dec(
     Word16 mod_ct, core, bits_offset;
     Word16 idx_LRTD_pri_side, tdm_inst_ratio_idx;
     Word32 element_brate_adapt;
-    Word16 bstr_last_pos;
+    Word16 bstr_last_pos, temp;
 
     hStereoTD = hCPE->hStereoTD;
     sts = hCPE->hCoreCoder;
 
     element_brate_adapt = L_add( hCPE->element_brate, hCPE->brate_surplus );
-    bstr_last_pos = add( sub( div_l( hCPE->element_brate, FRAMES_PER_SEC / 2 ), nb_bits_metadata ), div_l( hCPE->brate_surplus, FRAMES_PER_SEC / 2 ) );
+
+    IF( hCPE->brate_surplus < 0 )
+    {
+        temp = extract_l( L_negate( Mpy_32_32( L_abs( hCPE->brate_surplus ), ONE_BY_FRAMES_PER_SEC_Q31 ) ) );
+    }
+    ELSE
+    {
+        temp = extract_l( Mpy_32_32( hCPE->brate_surplus, ONE_BY_FRAMES_PER_SEC_Q31 ) );
+    }
+    bstr_last_pos = add( sub( div_l( hCPE->element_brate, FRAMES_PER_SEC / 2 ), nb_bits_metadata ), temp );
 
     /*----------------------------------------------------------------*
      * Decode CoreCoder signaling