diff --git a/lib_com/options.h b/lib_com/options.h
index 9ca32b4b3fd70708afe1fbe1445478201ec13553..2f69d62f4bc414e3e2c550b3948ec4f316579996 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -177,6 +177,7 @@
 #define NONBE_FIX_770_PLANAR_SBA_JBM                          /* FhG  : Issue #770: Crash in planar FOA decoding with JBM caused by uninitialized value */
 #define NONBE_FIX_760_COHERENCE_MASA                          /* Nokia: Issue 760: fixes decoder crash for some cases when all energy ratios are 1 */
 #define NONBE_FIX_752_OSBA_MISCONFIG_MCT                      /* FhG: issue 752: misconfiguration of MCT causes crashes for coding with sampling rate under 48kHz at 256kbps*/
+#define NONBE_FIX_780_ISM_STARTS_WITH_SID                     /* VA: issue 780: fix Crash in ISM decoding when bitstream starts with an SID and output_config is not EXT */
 
 /* ##################### End NON-BE switches ############################# */
 
diff --git a/lib_dec/ivas_init_dec.c b/lib_dec/ivas_init_dec.c
index 3a4d4f8130122cd13538b6d38876f26be2acd937..bc78ddf7234444f59faf225d7d102585442ee32f 100644
--- a/lib_dec/ivas_init_dec.c
+++ b/lib_dec/ivas_init_dec.c
@@ -623,6 +623,9 @@ ivas_error ivas_dec_setup(
             st_ivas->nchan_ism = nchan_ism;
 
             /* read ism_mode */
+#ifdef NONBE_FIX_780_ISM_STARTS_WITH_SID
+            st_ivas->ism_mode = ISM_MODE_DISC;
+#endif
             if ( nchan_ism > 2 )
             {
                 k -= nchan_ism; /* SID metadata flags */