diff --git a/lib_com/options.h b/lib_com/options.h
index 65874503fb5760e3681fa2f15f91d371849fd167..08db6430653373c758d4b8e43a2e08e5c0c5f759 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -162,6 +162,7 @@
 /*#define FIX_I4_OL_PITCH*/                             /* fix open-loop pitch used for EVS core switching */
 #define TMP_1342_WORKAROUND_DEC_FLUSH_BROKEN_IN_SR      /* FhG: Temporary workaround for incorrect implementation of decoder flush with split rendering */
 #define NONBE_1122_KEEP_EVS_MODE_UNCHANGED              /* FhG: Disables fix for issue 1122 in EVS mode to keep BE tests green. This switch should be removed once the 1122 fix is added to EVS via a CR.  */
+#define FIX_1484_CLANG18_MSAN_INIT_ST_ELEM_BRATE        /* FhG: initialize st->element_brate per default */
 #define FIX_1464_UBSAN_RC_CONTEXT_MAP                   /* FhG: BE UBSAN fix for float issue 1464 in the TCX range coder */
 #define FIX_2272_OOB_INDEXING_IN_LTP_PIT_SEARCH         /* FhG: fix OOB index USAN error in TCX LTP pitch search */
 #define FIX_2274_OOB_INDEXING_IN_CORRMATRIX             /* FhG: fix OOB indexing complaint */
diff --git a/lib_dec/ivas_sce_dec.c b/lib_dec/ivas_sce_dec.c
index 148b58487224f538e1ac1b1c4290d4f027233db1..8bbe0f421cda7744f5c4c6e13ea6b630303c225c 100644
--- a/lib_dec/ivas_sce_dec.c
+++ b/lib_dec/ivas_sce_dec.c
@@ -368,6 +368,9 @@ ivas_error create_sce_dec(
     copy_decoder_config( st_ivas, st );
 
     st->total_brate = hSCE->element_brate; /* dummy initialization for getting right pointers initialization of input buffers in init_coder_ace_plus() */
+#ifdef FIX_1484_CLANG18_MSAN_INIT_ST_ELEM_BRATE
+    st->element_brate = -1;
+#endif
     st->mct_chan_mode = MCT_CHAN_MODE_REGULAR;
     st->is_ism_format = 0;
     if ( st_ivas->ivas_format == ISM_FORMAT || st_ivas->ivas_format == MASA_ISM_FORMAT )