diff --git a/lib_com/options.h b/lib_com/options.h
index 6077b56c658c586d6bd4ee194b0fd4a56d83821d..b58114d2be80da7784f25d4b6bbdda0ce1a94662 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -89,6 +89,7 @@
 #define FIX_2252_SCALING_SAVE_HB_SYNTH                  /* VA: issue 2252: fix use-of-uninit-value in save_hb_synth_fx[] scaling in FOA decoding with bitstream that starts with an SID */
 #define FIX_2248_EVS_ASSERT                             /* VA: Include _sat in an EVS related part of the code */
 #define FIX_2254_IMPROV_COMPLEXITY_BE                   /* VA: BE small complexity reduction  */
+#define FIX_2275_OOB_INDEXING_IN_PREDICT_SIGNAL_FUNC    /* FhG: fix a USAN OOB error */
 #define FIX_2284_ADD_ASSERT_LOG                         /* FhG: add asserts to Log2_norm_lc() and log10_fx() */
 #define FIX_2286_GCC_WARNING_Idx2Freq_Tbl               /* FhG: Fix compiler warning for OOB access of Idx2Freq_Tbl[] */
 #define FIX_CLANG18_MSAN_IN_DEC_INIT_BY_MOVING_COMMON_INITS_TOGETHER /* FhG: fix CLANG18 MSAN error in decoder init */
diff --git a/lib_com/tcx_ltp_fx.c b/lib_com/tcx_ltp_fx.c
index 4eb334205f5230fce05a392f84970bacb68586f5..1ecc8b7665b0ff7cd22727b2624c106c0d156782 100644
--- a/lib_com/tcx_ltp_fx.c
+++ b/lib_com/tcx_ltp_fx.c
@@ -401,9 +401,20 @@ void predict_signal(
         x0--;
     }
 
+#ifdef FIX_2275_OOB_INDEXING_IN_PREDICT_SIGNAL_FUNC
+    IF( EQ_16( frac_max, 6 ) )
+    {
+        win = &inter6_2tcx2[frac][0]; /* Q15 */
+    }
+    ELSE
+    {
+        win = &inter4_2tcx2[frac][0]; /* Q15 */
+    }
+#else
     win = &inter4_2tcx2[frac][0]; /* Q15 */
     if ( EQ_16( frac_max, 6 ) )
         win = &inter6_2tcx2[frac][0]; /* Q15 */
+#endif
 
     FOR( j = 0; j < L_subfr; j++ )
     {