diff --git a/lib_com/options.h b/lib_com/options.h
index e173c197186d577d74fad1de9bf9c4a8c920f4d8..726a1f6a8238a25f4c8ba1522f626bd4d9284766 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -116,6 +116,7 @@
 #define FIX_2367_REMOVE_CODE_ICBWE                      /* VA: basop issue 2367: Remove IC-BWE obsolete code  */
 #define REMOVE_SCALING_SHB_SPEECH                       /* VA: remove unnecessary scaling and 32-bit buffers from ivas_core_enc_fx() */
 #define FIX_2352_COPY_AQ_IN_TCX                         /* FhG: basop issue 2352: prevent copying uninitialized values from Aq_fx[][] to Aq_fx_32[][] in TCX */
+#define FIX_2353_PTR_INIT                               /* FhG: basop issue 2353: initialize prm_sqQ-pointer, to prevent being uninitialized in case of bfi == 1 */
 
 /* #################### End BE switches ################################## */
 
diff --git a/lib_dec/dec_tcx_fx.c b/lib_dec/dec_tcx_fx.c
index 13cf9e9eb5a26b97e96a6a92f1c7bc4326c3cbd0..e48affb21e485fab77f1dd9d345e1a278c645ce9 100644
--- a/lib_dec/dec_tcx_fx.c
+++ b/lib_dec/dec_tcx_fx.c
@@ -4021,6 +4021,9 @@ void decoder_tcx_ivas_fx(
     move16();
     fUseTns = 0; /* flag that is set if TNS data is present */
     move16();
+#ifdef FIX_2353_PTR_INIT
+    prm_sqQ = NULL;
+#endif
 
     set16_fx( xn_buf_fx, 0, L_MDCT_OVLP_MAX + L_FRAME_PLUS + L_MDCT_OVLP_MAX );