diff --git a/lib/src/polish/CatPol.gf b/lib/src/polish/CatPol.gf
index 63a028745..ab8a5ca44 100644
--- a/lib/src/polish/CatPol.gf
+++ b/lib/src/polish/CatPol.gf
@@ -2,7 +2,7 @@
 
 -- Adam Slaski, 2009 <adam.slaski@gmail.com>
 
-concrete CatPol of Cat = CommonPol ** open ResPol, Prelude, (R = ParamX) in {
+concrete CatPol of Cat = CommonX - [CAdv] ** open ResPol, Prelude, (R = ParamX) in {
 
   flags optimize=all_subs; coding=utf8;
 
@@ -124,5 +124,7 @@ concrete CatPol of Cat = CommonPol ** open ResPol, Prelude, (R = ParamX) in {
     N3 = {s : SubstForm => Str; g : Gender} ** { c, c2 : Complement } ;
 
     PN = NounPhrase;
+    
+    CAdv = {s,p,sn,pn : Str} ;
 };
 
diff --git a/lib/src/polish/CommonPol.gf b/lib/src/polish/CommonPol.gf
deleted file mode 100644
index 8d8af3edb..000000000
--- a/lib/src/polish/CommonPol.gf
+++ /dev/null
@@ -1,34 +0,0 @@
-concrete CommonPol of Common = open (R = ParamX) in {
-
-  lincat
-    Text = {s : Str} ; --lock_Text : {}} ;
-    Phr = {s : Str} ; --lock_Phr : {}} ;
-    Utt = {s : Str} ; --lock_Utt : {}} ;
-    Voc = {s : Str} ; --lock_Voc : {}} ;
-    SC  = {s : Str} ; --lock_SC : {}} ;
-    Adv = {s : Str} ; --lock_Adv : {}} ;
-    AdV = {s : Str} ; --lock_AdV : {}} ;
-    AdA = {s : Str} ; --lock_AdA : {}} ;
-    AdN = {s : Str} ; --lock_AdN : {}} ;
-    IAdv = {s : Str} ; --lock_IAdv : {}} ;
-    CAdv = {s,p,sn,pn : Str} ; --lock_CAdv : {}} ;
-    PConj = {s : Str} ; --lock_PConj : {}} ;
-
-    Temp  = {s : Str ; t : R.Tense ; a : R.Anteriority} ;
-    Tense = {s : Str ; t : R.Tense} ;
-    Ant   = {s : Str ; a : R.Anteriority} ;
-    Pol   = {s : Str ; p : R.Polarity} ;
-
-  lin
-    TTAnt t a = {s = t.s ++ a.s ; t = t.t ; a = a.a} ;
-
-    PPos  = {s = []} ** {p = R.Pos} ;
-    PNeg  = {s = []} ** {p = R.Neg} ;
-    TPres = {s = []} ** {t = R.Pres} ;
-    TPast = {s = []} ** {t = R.Past} ;   --# notpresent
-    TFut  = {s = []} ** {t = R.Fut} ;    --# notpresent
-    TCond = {s = []} ** {t = R.Cond} ;   --# notpresent
-    ASimul = {s = []} ** {a = R.Simul} ;
-    AAnter = {s = []} ** {a = R.Anter} ; --# notpresent
-
-}