diff --git a/lib_com/options.h b/lib_com/options.h
index 830d779e62093411a41a52f6e006b7cdd49b021d..043c0e4d4b44c5ed475abe8ab0f6a23518c5883e 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -206,6 +206,7 @@
 #define FIX_GAIN_EDIT_LIMITS                           /* Harmonize gain edit limits for all opertation points. For all modes, limit to max +12dB. For parametric modes, limit to min -24dB. */
 #define NONBE_1380_OMASA_BUILD_DIFF                     /* Nokia: Fix for issue #1380: Large differences in OMASA output between Debug and Release builds */
 #define NONBE_FIX_1426_STEREO_PANNING_BETWEEN_OPT_LEVEL /* Nokia: Adjustments in remaining stereo panning functions to make them BE between Debug and Release */
+#define BE_FIX_1391_COVERAGE_SPAR_DYN__CHANNEL         /* Dolby: Fix coverage of SBA SPAR Dynamic active W not getting hit by the tests */
 
 // object-editing feature porting
 #define FIX_HRTF_LOAD_API                               // solves API conflicts between HRTF and object-editing features
diff --git a/lib_debug/debug.c b/lib_debug/debug.c
index 77823632b8d70ce66c003c3b442b816b0d835bb4..5a1fc78abbd5b8df0d618a971f8bce1d3322a524 100644
--- a/lib_debug/debug.c
+++ b/lib_debug/debug.c
@@ -784,8 +784,13 @@ char *fname(
 #endif
     char idd[6];
 
+#ifdef BE_FIX_1391_COVERAGE_SPAR_DYN__CHANNEL
+    assert( id >= 0 && id < 100 );
+    snprintf( idd, sizeof( idd ), ".id%d", id );
+#else
     assert( id < 100 );
     sprintf( idd, ".id%d", id );
+#endif
 
     strcpy( tmp_fname, dir );
 #ifdef DEBUG_FORCE_DIR
diff --git a/lib_enc/ivas_spar_encoder.c b/lib_enc/ivas_spar_encoder.c
index 79b00113fcc57bcd55e3951aac232820daa1e3bf..0cb0cf6e60517e3e6c89b1245607ed4de4472d42 100644
--- a/lib_enc/ivas_spar_encoder.c
+++ b/lib_enc/ivas_spar_encoder.c
@@ -838,7 +838,11 @@ static ivas_error ivas_spar_enc_process(
     {
 
         /*cross fade between new active W channels and old passive W channel*/
+#ifdef BE_FIX_1391_COVERAGE_SPAR_DYN__CHANNEL
+        if ( dyn_active_w_flag == 1 || hSpar->hMdEnc->spar_md.prior_dyn_active_w_flag == 1 )
+#else
         if ( dyn_active_w_flag == 1 )
+#endif
         {
             if ( hSpar->hMdEnc->spar_md.prior_dyn_active_w_flag != dyn_active_w_flag )
             {