diff --git a/lib_com/tns_base.c b/lib_com/tns_base.c
index 6f6ee203fd3d8d30aa85a5e4903f2cabebc9a728..54e6478d45df63fd6324ce70b84f20528e9523b5 100755
--- a/lib_com/tns_base.c
+++ b/lib_com/tns_base.c
@@ -174,7 +174,7 @@ void InitTnsConfiguration(
 
     FOR( iFilter = 0; iFilter < pTnsConfig->nMaxFilters; iFilter++ )
     {
-        assert( pTnsConfig->pTnsParameters[iFilter].startLineFrequency < 0.5f * nSampleRate );
+        assert( pTnsConfig->pTnsParameters[iFilter].startLineFrequency < nSampleRate / 2 );
         assert( nSampleRate <= 96000 );
         move16();
         startLineFilter[iFilter] = divide3232( L_mult0( frameLength, pTnsConfig->pTnsParameters[iFilter].startLineFrequency ), L_shl( nSampleRate, 14 ) );