diff --git a/lib_com/options.h b/lib_com/options.h
index 5e8a08b81622f9324e5c7de4553187075730025b..b7e24bfb28f1e671a5c370c0bfc680f7bbf1de00 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -101,6 +101,7 @@
 #define FIX_2278_OOB_INDEXING_IN_CLOSED_LOOP_PIT_SEARCH /* FhG: fix oob indexing USAN complaint */
 #define FIX_2287_MCT_MDCT_STEREO_DATA_MALLOC_SIZE       /* FhG: correct allocation size for STEREO_MDCT_DEC_DATA struct */
 #define FIX_1904_HARM_GSC_ENC                           /* VA: #1904 Harmonization of EVS and IVAS GSC code */
+#define FIX_1487_ACCESS_OF_UNINIT_VAL_FROM_ARR_ISM_DTX  /* FhG/VA: init nb_bits_metadata to zero */
 
 /* #################### End BE switches ################################## */
 
diff --git a/lib_dec/ivas_ism_dtx_dec_fx.c b/lib_dec/ivas_ism_dtx_dec_fx.c
index 162cc42ed5ac60975c925ba61789c1846d45fefd..41e3ce46604f3e38b063ec923b2e6c5998189a35 100644
--- a/lib_dec/ivas_ism_dtx_dec_fx.c
+++ b/lib_dec/ivas_ism_dtx_dec_fx.c
@@ -126,6 +126,12 @@ void ivas_ism_dtx_dec_fx(
             move16();
         }
     }
+#ifdef FIX_1487_ACCESS_OF_UNINIT_VAL_FROM_ARR_ISM_DTX
+    ELSE
+    {
+        set16_fx( nb_bits_metadata, 0, st_ivas->nchan_transport );
+    }
+#endif
 
     IF( !st_ivas->bfi )
     {