diff --git a/lib_com/options.h b/lib_com/options.h
index fba3ebf3a5a663d663dc1fb1a706b98c26c4539d..1ed9f1662cbc370f047bb3446cccc9ba67df9e8a 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -158,15 +158,13 @@
 #define NONBE_FIX_984_OMASA_EXT_OUTPUT                        /* Nokia: issue #984: complete the OMASA EXT output implementation */
 
 #define USE_NEW_HRTF_BINARY_FILE_FORMAT                 /* Orange: to activate when decided to change the hrtf binary file format */
-
 #define FIX_WARNING_RENDER_CONFIG                       /* Orange: fix warning on windows build */
-
 #define NONBE_FIX_991_PARAMBIN_BINARY_HRTF              /* Nokia: issue #991: fix using of binary file HRTF in ParamBin (to activate when USE_NEW_HRTF_BINARY_FILE_FORMAT and FIX_777_COMBI_RENDER_CONFIG_FILE are on ) */
-
 #define FIX_1741_REVERB_TIMES_Q_FORMAT                  /* Philips: reverberation times in Q26 format instead of Q31 */
 #define FIX_1831_REVERB_REGRESSION                      /* Philips: fixes reverb regression issues  */
-
 #define FIX_1835_REVERB_ACTIVATION                      /* FhG: Modified reverberation activation logic and corrected factEQ calculation */
+#define NON_BE_FIX_EVS_USAN_ERR_IN_WAVEADJUST           /* FhG: address issue 1037 */
+
 /* #################### End BASOP porting switches ############################ */
 
 #endif
diff --git a/lib_dec/waveadjust_fec_dec_fx.c b/lib_dec/waveadjust_fec_dec_fx.c
index 75a514cc21c2fb99f546ae3ff75358544c97b3bc..e0c599e235c098b8275f8bd8bcda333a9c2bb884 100644
--- a/lib_dec/waveadjust_fec_dec_fx.c
+++ b/lib_dec/waveadjust_fec_dec_fx.c
@@ -930,7 +930,20 @@ void concealment_decode_fix(
             /* sign randomization */
             FOR( i = 0; i < N; i++ )
             {
+#ifdef NON_BE_FIX_EVS_USAN_ERR_IN_WAVEADJUST
+                Word16 rnd;
+                rnd = own_random_fix( seed );
+                IF( GE_16( rnd, 0 ) )
+                {
+                    sign = 1;
+                }
+                ELSE IF( LT_16( rnd, 0 ) )
+                {
+                    sign = -1;
+                }
+#else
                 sign = add( shl( shr( own_random_fix( seed ), 15 ), 1 ), 1 );
+#endif
                 if ( EQ_16( sign, -1 ) )
                 {
                     invkoef[i] = L_negate( invkoef[i] );