diff --git a/lib_com/options.h b/lib_com/options.h
index b0a19c335e54e4fc238c567e859473acc406490d..d8077b75721d697124cfae971b3a501f0d38c1bd 100755
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -156,6 +156,7 @@
 #define FIX_INV_DIFFUSE_WEIGHT                          /* Orange : Fix error in energy compensation in late binaural reverb*/
 #define FIX_20_MS_FRAME_LEN_TABLES_CONVERTER            /* Orange : generate_tables_converter tools can generate rom for 5 and 20 ms frame length */
 #define FIX_955_FASTCONV_REND_IN_ISM                    /* VA: put FastConv rendering call under DEBUGGING */
+#define FIX_969_USAN_IGF_ARITH                          /* FhG: issue 969: fix USAN error in igf_sce_dec; same issue as #962 */
 #define FIX_959_MASA_LINEAR_REND                        /* VA: issue 959: remove unused calling of ivas_sba_linear_renderer() in MASA rendering */
 
 /* #################### End BE switches ################################## */
diff --git a/lib_dec/igf_scf_dec.c b/lib_dec/igf_scf_dec.c
old mode 100644
new mode 100755
index f152f637a0d83b6e78684766f44a215874793eb0..a8162c64431a70712496a65fc0ff6b5abf36968a
--- a/lib_dec/igf_scf_dec.c
+++ b/lib_dec/igf_scf_dec.c
@@ -211,7 +211,12 @@ static void decode_sfe_vector(
        |    c b
        |      e  --> t
     */
+#ifdef FIX_969_USAN_IGF_ARITH
+    int16_t pred;
+    uint16_t pred_tmp;
+#else
     uint16_t pred;
+#endif
     int16_t f, ctx, ctx_f, ctx_t;
 
     for ( f = 0; f < length; f++ )
@@ -221,7 +226,12 @@ static void decode_sfe_vector(
             if ( f == 0 )
             {
                 /* decode one of the IGF_SYMBOLS_IN_TABLE == 27 alphabet symbols using the new raw AC function */
+#ifdef FIX_969_USAN_IGF_ARITH
+                ari_decode_14bits_s27_ext( st, &pred_tmp, &hPrivateData->acState, hPrivateData->cf_se00 );
+                pred = (int16_t) pred_tmp;
+#else
                 ari_decode_14bits_s27_ext( st, &pred, &hPrivateData->acState, hPrivateData->cf_se00 );
+#endif
                 x[f] = pred << 2;
                 x[f] += arith_decode_bits( &hPrivateData->acState, st, 2 ); /* LSBs as 2 bit raw */
             }