diff --git a/lib_com/options.h b/lib_com/options.h
index 4af9a90d3e6087f81f61853884d24573afe32577..a9eb870a3d11f5b6b49b377d1afed048f9d96cab 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -95,6 +95,7 @@
 #define FIX_2467_RENAME_GSC_FUNCTION                    /* VA: basop issue 2467: Removal of unused function/table and renaming of _ivas_fx versions to default ones. */
 #define HARMONIZE_FUNC                                  /* VA: basop issue 2460: Remove duplicated code: various functions */
 #define FIX_FLOAT_1536_INIT_NO_PARAM_LPC                /* FhG: make sure no_param_lpc is initialized in core_encode_twodiv() */
+#define FIX_BASOP_2871_INIT_Q_SYN_FACTOR                /* FhG: make sure, st_fx->Q_syn_factor gets initialized during decoder startup */
 
 /* #################### End BE switches ################################## */
 
diff --git a/lib_dec/init_dec_fx.c b/lib_dec/init_dec_fx.c
index b8a5fe6de63c1dd49f8d29605942b44899021687..82c566a56d2e47e513d678a54a020d1e7f11d1f2 100644
--- a/lib_dec/init_dec_fx.c
+++ b/lib_dec/init_dec_fx.c
@@ -969,6 +969,10 @@ ivas_error init_decoder_fx(
     move16();
     st_fx->prev_Q_syn = 0;
     move16();
+#ifdef FIX_BASOP_2871_INIT_Q_SYN_FACTOR
+    st_fx->Q_syn_factor = 0;
+    move16();
+#endif
 
     FOR( i = 0; i < L_Q_MEM; i++ )
     {