diff --git a/lib_com/options.h b/lib_com/options.h
index 1318a03b9331cb15358dbab9585eaaa3cda7b177..3943d1577d70b42ad718a96f4e04e2c08bf2e25e 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -177,6 +177,7 @@
 #define NONBE_1339_FIXOSBA_EXT_LOUDNESS                 /* FhG: issue 1339: apply scaling with EXT output in OSBA high-BR mode */
 #define NONBE_1352_HARMONIZE_OSBA_LOUDNESS             /* FhG: do not scale OSBA inputs by 0.5 any more */
 #define NONBE_1359_FIX_IVASREND_OMASA_BINAURAL_LOUDNESS /* Nokia: issue 1339: Apply scaling to the object-part of OMASA for binaural rendering in IVAS_rend. */
+#define NONBE_1362_FIX_OMASA_TO_MASA1_RENDERING         /* Nokia: Fix OMASA to MASA1 rendering in IVAS_rend */
 
 /* ##################### End NON-BE switches ########################### */
 
diff --git a/lib_rend/ivas_omasa_ana.c b/lib_rend/ivas_omasa_ana.c
index 95d67ee4fe130c0b5bd45d9068f77f1c5f723328..be092fe1016b1b73e0f10625c39ba3fa74bb3453 100644
--- a/lib_rend/ivas_omasa_ana.c
+++ b/lib_rend/ivas_omasa_ana.c
@@ -490,6 +490,34 @@ static void ivas_omasa_dmx(
 
     for ( i = 0; i < nchan_ism; i++ )
     {
+#ifdef NONBE_1362_FIX_OMASA_TO_MASA1_RENDERING
+        if ( nchan_transport == 1 )
+        {
+            v_add( data_out_f[0], data_in_f[i], data_out_f[0], input_frame );
+        }
+        else
+        {
+            azimuth = ism_azimuth[i];
+            elevation = ism_elevation[i];
+
+            ivas_ism_get_stereo_gains( azimuth, elevation, &gains[0], &gains[1] );
+
+            /* Downmix using the panning gains */
+            for ( j = 0; j < nchan_transport; j++ )
+            {
+                if ( fabsf( gains[j] ) > 0.0 || fabsf( prev_gains[i][j] ) > 0.0f )
+                {
+                    for ( k = 0; k < input_frame; k++ )
+                    {
+                        g1 = interpolator[k];
+                        g2 = 1.0f - g1;
+                        data_out_f[j][k] += ( g1 * gains[j] + g2 * prev_gains[i][j] ) * data_in_f[i][k];
+                    }
+                }
+                prev_gains[i][j] = gains[j];
+            }
+        }
+#else
         azimuth = ism_azimuth[i];
         elevation = ism_elevation[i];
 
@@ -509,6 +537,7 @@ static void ivas_omasa_dmx(
             }
             prev_gains[i][j] = gains[j];
         }
+#endif
     }
 
     for ( i = 0; i < nchan_transport; i++ )