diff --git a/lib_com/options.h b/lib_com/options.h
index 058bc845afacfa46b2f5db77872e809103f4b10f..838bd2a3c38c662d11ab2ce0cf013a7d410e3198 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -111,6 +111,7 @@
 #define FIX_FLOAT_1569_REND_RENDER_CONFIG_CHECKS        /* Nokia: float issue 1569: fix render config checks in renderer */
 #define FIX_BASOP_2526_SPAR_MASA_PARAM_MAP_Q_BUG        /* Nokia: BASOP issue 2526: Fix wrong Q variable in SPAR to MASA param mapping */
 #define FIX_BASOP_2524_MASA_REDUCE_META_BUG             /* Nokia: BASOP issue 2524: Fix wrong reset of W_tmp in reduce_metadata_further_fx */
+#define FIX_BASOP_2520_PARAMBIN_THRESHOLD_FIX           /* Nokia: BASOP issue 2520: Fix wrong threshold in ParamBin */
 
 /* ##################### End NON-BE switches ########################### */
 
diff --git a/lib_rend/ivas_dirac_dec_binaural_functions_fx.c b/lib_rend/ivas_dirac_dec_binaural_functions_fx.c
index 27017138bc39168ba731e61284def34ee8525c8c..391e59f532415086f06c7945bb2dbbd37c8dc4dc 100644
--- a/lib_rend/ivas_dirac_dec_binaural_functions_fx.c
+++ b/lib_rend/ivas_dirac_dec_binaural_functions_fx.c
@@ -1646,7 +1646,11 @@ static void ivas_dirac_dec_binaural_formulate_target_covariance_matrices_fx(
             }
             ELSE IF( NE_32( ivas_format, MASA_ISM_FORMAT ) || ( EQ_32( ivas_format, MASA_ISM_FORMAT ) && LT_16( dirIndex, hSpatParamRendCom->numParametricDirections ) ) ) /* For second of the two simultaneous directions */
             {
+#ifdef FIX_BASOP_2520_PARAMBIN_THRESHOLD_FIX
+                IF( LT_32( ( ratio_fx = hSpatParamRendCom->energy_ratio2_fx[dirac_read_idx][bin] ), 1073741 /* 0.001 in Q30 */ ) )
+#else
                 IF( LT_32( ( ratio_fx = hSpatParamRendCom->energy_ratio2_fx[dirac_read_idx][bin] ), 10737418 /* 0.01 in Q30 */ ) )
+#endif
                 {
                     /* This touches only MASA path where second direction always has smaller ratio and
                      * for non-2dir it is zero. As the whole direction contribution is multiplied with