diff --git a/lib_com/options.h b/lib_com/options.h
index c795c9b24faf8f3d6b77666c80b6f512d8c28626..d19f9ef2e36d4fb6a4f836730888c339cbb029bd 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -168,6 +168,7 @@
 #define FIX_HRTF_LEFTOVERS                              /* VA: HRTF updates - bring float main in line with BASOP main */
 #define FIX_1384_MSAN_ivas_spar_dec_open                /* VA: issue 1386: fix use-of-uninitialized value in ivas_spar_dec_open() */
 #define FIX_1384_MSAN_stereo_tcx_core_enc               /* VA: issue 1384: fix use-of-uninitialized value in stereo_tcx_core_enc() */
+#define FIX_1388_MSAN_ivas_init_decoder                 /* VA: issue 1388: fix use-of-uninitialized value in ivas_init_decoder() */
 
 /* #################### End BE switches ################################## */
 
diff --git a/lib_dec/lib_dec.c b/lib_dec/lib_dec.c
index 95ebbcb1c7522a088c984519d4945611bdfa56e8..99894e4b62311a7a134c93d496ca53a1d5f64f32 100644
--- a/lib_dec/lib_dec.c
+++ b/lib_dec/lib_dec.c
@@ -857,12 +857,23 @@ ivas_error IVAS_DEC_FeedFrame_Serial(
 {
     ivas_error error;
 
+#ifdef FIX_1388_MSAN_ivas_init_decoder
+    if ( hIvasDec == NULL || hIvasDec->st_ivas == NULL )
+    {
+        return IVAS_ERR_UNEXPECTED_NULL_POINTER;
+    }
+
+#endif
     if ( !hIvasDec->isInitialized )
     {
         /* Once first frame is fed, finish initialization in EVS Mono.
          * In IVAS mode, initialization is done in ivas_dec(). */
         if ( hIvasDec->mode == IVAS_DEC_MODE_EVS )
         {
+#ifdef FIX_1388_MSAN_ivas_init_decoder
+            hIvasDec->st_ivas->hDecoderConfig->ivas_total_brate = ACELP_8k00;
+
+#endif
             if ( ( error = ivas_init_decoder( hIvasDec->st_ivas ) ) != IVAS_ERR_OK )
             {
                 return error;
@@ -875,10 +886,12 @@ ivas_error IVAS_DEC_FeedFrame_Serial(
                 st->prev_use_partial_copy = 0;
                 hIvasDec->st_ivas->hDecoderConfig->ivas_total_brate = hIvasDec->hVoIP->hCurrentDataUnit->dataSize * FRAMES_PER_SEC;
             }
+#ifndef FIX_1388_MSAN_ivas_init_decoder
             else
             {
                 hIvasDec->st_ivas->hDecoderConfig->ivas_total_brate = ACELP_8k00;
             }
+#endif
             hIvasDec->isInitialized = true;
         }
     }
@@ -908,6 +921,7 @@ ivas_error IVAS_DEC_FeedFrame_Serial(
             bfi = 2;
         }
     }
+
     if ( ( error = read_indices( hIvasDec->st_ivas, serial, num_bits, &hIvasDec->prev_ft_speech, &hIvasDec->CNG, bfi ) ) != IVAS_ERR_OK )
     {
         return error;