diff --git a/lib_enc/lsf_enc_fx.c b/lib_enc/lsf_enc_fx.c
index 6761dfb8296d21226261d62f774f892ba973f889..e6d08c49df2c77c490d83943f4b536c2d1fc882a 100644
--- a/lib_enc/lsf_enc_fx.c
+++ b/lib_enc/lsf_enc_fx.c
@@ -733,7 +733,7 @@ static void lsfq_CNG_ivas_fx(
     /* MSVQ_ROM to be updated */
     mslvq_cng_ivas_fx( idx_cv, dd, qlsf, ddq, idx_lead_cng, idx_scale_cng, wghts );
 
-    index_lvq_ivas_fx( ddq, idx_lead_cng, idx_scale_cng, START_CNG + idx_cv, idx_lvq, 0 );
+    index_lvq_ivas_fx( ddq, idx_lead_cng, idx_scale_cng, START_CNG_IVAS + idx_cv, idx_lvq, 0 );
     Vr_add( qlsf, &CNG_SN1_fx[idx_cv * M], qlsf, M );
 
     /* write the VQ index to the bitstream */
diff --git a/lib_enc/mslvq_enc_fx.c b/lib_enc/mslvq_enc_fx.c
index af5a82b69edc9c96987d221c032b1aa30450ca50..f15b8065579787507b15d1de97e15d0bddcf787f 100644
--- a/lib_enc/mslvq_enc_fx.c
+++ b/lib_enc/mslvq_enc_fx.c
@@ -244,7 +244,7 @@ Word32 mslvq_cng_ivas_fx(
 
     /* for CNG there is only one bitrate but several lattice quantizer structures,
        depending on the previous VQ stage */
-    mode_glb = add( START_CNG, idx_cv );
+    mode_glb = add( START_CNG_IVAS, idx_cv );
     move16();
 
     p_sigma = sigma_MSLVQ_fx[mode]; // x2.56