diff --git a/lib_com/options.h b/lib_com/options.h
index 21fe8248530a752fd9f6dc32913a11124aa329fa..1d98c0d8a0e887cc25a6f8b98f6f865ae2136326 100755
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -167,6 +167,7 @@
 #ifdef FIX_185_REDUCE_MD_BITS
 #define CLEANUP_185_NO_AGC_EXCEPTION                    /* Issue 185: Cleanup AGC EXCEPTION code */
 #endif
+#define FIX_I220_PARAMMC_CPROTO                         /* Issue 220: sanitizer error in the svd due to NaNs coming from negative energies in Cproto */
 
 
 /* ################## End DEVELOPMENT switches ######################### */
diff --git a/lib_dec/ivas_mc_param_dec.c b/lib_dec/ivas_mc_param_dec.c
index 29e2ce40025443b0b0384dfb80cb7e23733e1478..d4a4fa5168e4cedb5d041ded42303ccd2f40ef30 100644
--- a/lib_dec/ivas_mc_param_dec.c
+++ b/lib_dec/ivas_mc_param_dec.c
@@ -1564,6 +1564,16 @@ static void ivas_param_mc_get_mixing_matrices(
 
         matrix_product( mat_mult_buffer1, nY_intern, nX, 0, hParamMC->proto_matrix_int, nY_intern, nX, 1, Cproto );
 
+#ifdef FIX_I220_PARAMMC_CPROTO
+        for ( ch_idx1 = 0; ch_idx1 < nY_intern; ch_idx1++ )
+        {
+            if ( Cproto[ch_idx1 + ch_idx1 * nY_intern] < 0.0f )
+            {
+                Cproto[ch_idx1 + ch_idx1 * nY_intern] = 0.0f;
+            }
+        }
+#endif
+
         ivas_param_mc_dequantize_cov( hParamMC,
                                       hParamMC->icld_q + param_band_idx * hParamMC->hMetadataPMC->ild_mapping_conf->ild_map_size_lfe,
                                       hParamMC->icc_q + param_band_idx * hParamMC->hMetadataPMC->icc_mapping_conf->icc_map_size_lfe,