diff --git a/lib_com/options.h b/lib_com/options.h
index bb0e077519d02bfc2c97a7b1d2760b55345bbe3a..516b3fb14eef0c52138f927295458ee37978b5a0 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -192,6 +192,7 @@
 #define FIX_ISSUE_2008_MISSING_CODE_FROM_PORTING        /* FhG: Issue 2008: Code deleted while porting float-main MR !1504 (BASOP issue 1565)*/
 #define ADJUST_MCT_CHANNELS_MAX                         /* FhG: set correct max mct channels constant*/
 #define FIX_1053_REVERB_RECONFIGURATION
+#define NONBE_1246_INF_COHERENCE_IN_HIGH_LEVEL_DTX      /* Ericsson: Issue 1246: High level input which triggers DTX can lead to numerical overflow in coherence calculation */
 #define TMP_FIX_1119_SPLIT_RENDERING_VOIP               /* FhG: Add error check for unsupported config: split rendering with VoIP mode */
 #define FIX_1113_EXTREND_ISAR                           /* FhG: issue 1113: fix external renderer asserts for FOA/HOA2 and CLDFB config */
 #define FIX_938_COMPILER_WARNING                        /* FhG: Fix compiler warning in ivas_mdct_core_reconstruct() */
diff --git a/lib_enc/ivas_stereo_cng_enc.c b/lib_enc/ivas_stereo_cng_enc.c
index 68b5a9dceaa8a8354dcedf3f822b237a9f3509e4..4a407d30f23561a6592853644a58ba7012c31796 100644
--- a/lib_enc/ivas_stereo_cng_enc.c
+++ b/lib_enc/ivas_stereo_cng_enc.c
@@ -95,7 +95,11 @@ void stereo_dft_enc_sid_calc_coh(
             for ( k = hStereoDft->band_limits[b]; k < hStereoDft->band_limits[b + 1]; k++ )
             {
                 coh_weight = hStereoDft->DFT[0][2 * k] * hStereoDft->DFT[0][2 * k] + hStereoDft->DFT[0][2 * k + 1] * hStereoDft->DFT[0][2 * k + 1];
+#ifdef NONBE_1246_INF_COHERENCE_IN_HIGH_LEVEL_DTX
+                cohBand[b] += coh_weight * ( ( hStereoDft->xspec_smooth[2 * k] * hStereoDft->xspec_smooth[2 * k] + hStereoDft->xspec_smooth[2 * k + 1] * hStereoDft->xspec_smooth[2 * k + 1] ) / ( hStereoDft->Spd_L_smooth[k] * hStereoDft->Spd_R_smooth[k] + EPSILON ) );
+#else
                 cohBand[b] += coh_weight * ( hStereoDft->xspec_smooth[2 * k] * hStereoDft->xspec_smooth[2 * k] + hStereoDft->xspec_smooth[2 * k + 1] * hStereoDft->xspec_smooth[2 * k + 1] ) / ( hStereoDft->Spd_L_smooth[k] * hStereoDft->Spd_R_smooth[k] + EPSILON );
+#endif
                 coh_weight_sum += coh_weight;
             }
             if ( coh_weight_sum > 0 )