diff --git a/cg/pagament.cpp b/cg/pagament.cpp
index f88142d44..3e4da3f20 100755
--- a/cg/pagament.cpp
+++ b/cg/pagament.cpp
@@ -890,7 +890,7 @@ word TPagamento::recalc_rate(int row, bool is_perc_modified,
             sc -= scad_rata(i);
           if (sc < 0 || (row > 0 && sc == 0)) return P_SCAD;  
           if (sc > 10000L) return P_SCWIDE;
-          if (_mcomm && (sc % 30) != 0) 
+          if (_mcomm && row > 0 && (sc % 30) != 0) 
             return P_MCOMM;
           TToken_string& tt = rata(row);
           TToken_string& ss = (TToken_string&)srate[row];