diff --git a/lib_com/options.h b/lib_com/options.h
index 031b3b41ce442acb048dcdb038fe574275da316d..2165b7e81837e2f3a1e4f09e14d0e8ee55cb1fab 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -114,6 +114,7 @@
 #define FIX_BASOP_2520_PARAMBIN_THRESHOLD_FIX           /* Nokia: BASOP issue 2520: Fix wrong threshold in ParamBin */
 #define FIX_BASOP_2510_UNNECESSARY_ASSERT               /* Nokia: BASOP issue 2510: Fix by removing assert */
 #define FIX_2515_TDREND_PORT_ERROR_SCALING              /* Nokia: BASOP issue 2515: Fix port error by changing to correct scaling */
+#define FIX_BASOP_2522_MAP_PARAMS_DIRAC_STEREO          /* FhG: BASOP issue 2522: Fix copy and paste error for side_gain calculation in map_params_dirac_to_stereo() */
 
 /* ##################### End NON-BE switches ########################### */
 
diff --git a/lib_dec/ivas_sba_dirac_stereo_dec_fx.c b/lib_dec/ivas_sba_dirac_stereo_dec_fx.c
index 2f7db14e8aa94cfccf0cccf64a2224a699974edf..1898078d482dd6b860f321dd921e3eb979ef67e0 100644
--- a/lib_dec/ivas_sba_dirac_stereo_dec_fx.c
+++ b/lib_dec/ivas_sba_dirac_stereo_dec_fx.c
@@ -645,7 +645,11 @@ static void map_params_dirac_to_stereo(
             move32();
             IF( q_sqrt )
             {
+#ifdef FIX_BASOP_2522_MAP_PARAMS_DIRAC_STEREO
+                side_gain[b + STEREO_DFT_BAND_MAX] = L_shl( side_gain[b + STEREO_DFT_BAND_MAX], q_sqrt ); /*Q31*/
+#else
                 side_gain[b + STEREO_DFT_BAND_MAX] = L_shl( side_gain[b], q_sqrt ); /*Q31*/
+#endif
                 q_sqrt = 0;
                 move16();
             }