diff --git a/lib_com/options.h b/lib_com/options.h
index 973366665467eda6f0eaf6e7cb9f0b20c7e88a10..daede4c0d2584ef73b77d4b5f9700e8bceb2fe1c 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -89,7 +89,7 @@
 #define FIX_2455_HARMONIZE_generate_comfort_noise_enc   /* FhG: harmonize generate_comfort_noise_enc and generate_comfort_noise_enc_ivas */
 #define FIX_2455_HARMONIZE_configureFdCngEnc            /* FhG: harmonize generate_comfort_noise_enc and generate_comfort_noise_enc_ivas */
 #define FIX_2463_EVS_BWE_LSF                            /* VA: basop issue 2463: harmonize calling of Quant_BWE_LSF_fx() */
-
+#define FIX_2452_HQ_CORE_PEAQ_AVR_RATIO_HARM            /* Eri: Basop issue 2453: Fix alignment of peak_avrg_ratio_fx */
 
 /* #################### End BE switches ################################## */
 
diff --git a/lib_enc/hq_classifier_enc_fx.c b/lib_enc/hq_classifier_enc_fx.c
index a17b078760c38c638937e2fd0f821f8be4a51334..c9cf8856b0db18a94fc6d8176d3eee4612e21224 100644
--- a/lib_enc/hq_classifier_enc_fx.c
+++ b/lib_enc/hq_classifier_enc_fx.c
@@ -387,7 +387,11 @@ Word16 peak_avrg_ratio_fx(
     test();
     test();
     test();
+#ifdef FIX_2452_HQ_CORE_PEAQ_AVR_RATIO_HARM
+    IF( ( GE_16( add( k, k1 ), 5 ) && GT_16( k1, 2 ) && LT_32( total_brate, HQ_BWE_CROSSOVER_BRATE ) && GT_32( total_brate, HQ_16k40 ) ) || ( ( ( GE_16( add( k, k1 ), 10 ) && GT_16( k1, 5 ) ) || GE_16( *mode_count, 5 ) ) && LT_16( *mode_count1, 5 ) ) )
+#else
     IF( ( GE_16( add( k, k1 ), 5 ) && GT_16( k1, 2 ) && LT_32( total_brate, HQ_BWE_CROSSOVER_BRATE ) ) || ( ( ( GE_16( add( k, k1 ), 10 ) && GT_16( k1, 5 ) ) || GE_16( *mode_count, 5 ) ) && LT_16( *mode_count1, 5 ) ) )
+#endif
     {
         hqswb_clas = HQ_HARMONIC;
         move16();
diff --git a/lib_enc/hq_lr_enc_fx.c b/lib_enc/hq_lr_enc_fx.c
index 663cee4b9be46a1d4f80bdbfeff0e304aaeed92c..e60f66bdc66150f6032c2c284cd62a105df6ebc0 100644
--- a/lib_enc/hq_lr_enc_fx.c
+++ b/lib_enc/hq_lr_enc_fx.c
@@ -206,10 +206,14 @@ void hq_lr_enc_fx(
         }
         ELSE
         {
+#ifdef FIX_2452_HQ_CORE_PEAQ_AVR_RATIO_HARM
+            hqswb_clas_fx = peak_avrg_ratio_fx( st_fx->total_brate, L_t_audio, NUMC_N, &hHQ_core->mode_count, &hHQ_core->mode_count1, SWB_BWE_LR_Qs ); /* Q0 */
+#else
 #ifdef HARM_HQ_CORE_KEEP_BE
             hqswb_clas_fx = peak_avrg_ratio_fx( HQ_BWE_CROSSOVER_BRATE, L_t_audio, NUMC_N, &hHQ_core->mode_count, &hHQ_core->mode_count1, SWB_BWE_LR_Qs ); /* Q0 */
 #else
             hqswb_clas_fx = peak_avrg_ratio_fx( st_fx->total_brate, L_t_audio, NUMC_N, &hHQ_core->mode_count, &hHQ_core->mode_count1, SWB_BWE_LR_Qs ); /* Q0 */
+#endif
 #endif
         }