diff --git a/lib/resource-1.0/italian/DiffIta.gf b/lib/resource-1.0/italian/DiffIta.gf
index 33a274e00..954f7542d 100644
--- a/lib/resource-1.0/italian/DiffIta.gf
+++ b/lib/resource-1.0/italian/DiffIta.gf
@@ -16,7 +16,7 @@ instance DiffIta of DiffRomance = open CommonRomance, PhonoIta, BeschIta, Prelud
       Nom | Acc => [] ;
       CPrep p => case p of {
         P_di => "di" ;
-        P_a  => "a" ;
+        P_a  => pre {"a" ; "ad" / vocale} ;
         P_da => "da" ;
         P_in => "in" ;
         P_su => "su" ;
diff --git a/lib/resource-1.0/italian/ParadigmsIta.gf b/lib/resource-1.0/italian/ParadigmsIta.gf
index 3a98856ca..48ef624fd 100644
--- a/lib/resource-1.0/italian/ParadigmsIta.gf
+++ b/lib/resource-1.0/italian/ParadigmsIta.gf
@@ -66,6 +66,10 @@ oper
 
   mkPrep : Str -> Prep ;
 
+-- The following prepositions also have special contracted forms.
+
+  con_Prep, da_Prep, in_Prep, su_Prep : Prep ;
+
 --2 Nouns
 
 -- Worst case: give both two forms and the gender. 
@@ -293,6 +297,11 @@ oper
   dative = complDat ;
   mkPrep p = {s = p ; c = Acc ; isDir = False} ;
 
+  con_Prep = {s = [] ; c = CPrep P_con ; isDir = False} ;
+  da_Prep = {s = [] ; c = CPrep P_da ; isDir = False} ;
+  in_Prep = {s = [] ; c = CPrep P_in ; isDir = False} ;
+  su_Prep = {s = [] ; c = CPrep P_su ; isDir = False} ;
+
   mkN x y g = mkNounIrreg x y g ** {lock_N = <>} ;
   regN x = mkNomReg x ** {lock_N = <>} ;
   compN x y = {s = \\n => x.s ! n ++ y ; g = x.g ; lock_N = <>} ;
diff --git a/lib/resource-1.0/italian/PhonoIta.gf b/lib/resource-1.0/italian/PhonoIta.gf
index 81fd60cf7..f725aef68 100644
--- a/lib/resource-1.0/italian/PhonoIta.gf
+++ b/lib/resource-1.0/italian/PhonoIta.gf
@@ -7,7 +7,7 @@ resource PhonoIta = open Prelude in {
 
 oper 
   vocale : Strs = strs {
-    "a" ; "e" ; "h" ; "i" ; "o" ; "u" ; "è"
+    "a" ; "e" ; "h" ; "i" ; "o" ; "u" ; "è" ; "y"
     } ;
 
   sImpuro : Strs = strs {