diff --git a/compiler/pdecsub.pas b/compiler/pdecsub.pas
index 11bd7848de..101d70b652 100644
--- a/compiler/pdecsub.pas
+++ b/compiler/pdecsub.pas
@@ -629,7 +629,6 @@ implementation
         aprocsym : tprocsym;
         popclass : boolean;
         ImplIntf : TImplementedInterface;
-        hashedid : THashedIDString;
       begin
         { Save the position where this procedure really starts }
         procstartfilepos:=current_tokenpos;
@@ -780,10 +779,7 @@ implementation
                         if (m_fpc in current_settings.modeswitches) then
                           Message1(parser_e_overloaded_no_procedure,srsym.realname)
                         else
-                          begin
-                            hashedid.id:='';
-                            duplicatesym(hashedid,nil,srsym);
-                          end;
+                          Message1(sym_e_duplicate_id,srsym.realname);
                         { rename the name to an unique name to avoid an
                           error when inserting the symbol in the symtable }
                         orgsp:=orgsp+'$'+tostr(current_filepos.line);
diff --git a/compiler/symbase.pas b/compiler/symbase.pas
index a11b07ebf1..7c2e57adba 100644
--- a/compiler/symbase.pas
+++ b/compiler/symbase.pas
@@ -104,13 +104,11 @@ interface
           procedure freeinstance;override;
           function  getcopy:TSymtable;
           procedure clear;virtual;
-//          function  rename(const olds,news:TIDString):TSymEntry;
           function  checkduplicate(var s:THashedIDString;sym:TSymEntry):boolean;virtual;
-          procedure insert(sym:TSymEntry);virtual;
+          procedure insert(sym:TSymEntry;checkdup:boolean=true);
           function  Find(const s:TIDString) : TSymEntry;
           function  FindWithHash(const s:THashedIDString) : TSymEntry;virtual;
           procedure insertdef(def:TDefEntry);virtual;
-//          procedure deletedef(def:TDefEntry);virtual;
           function  iscurrentunit:boolean;virtual;
        end;
 
@@ -275,20 +273,26 @@ implementation
       end;
 
 
-    procedure TSymtable.insert(sym:TSymEntry);
+    procedure TSymtable.insert(sym:TSymEntry;checkdup:boolean=true);
       var
         hashedid : THashedIDString;
       begin
-         if sym.realname[1]='$' then
-           hashedid.id:=Copy(sym.realname,2,255)
-         else
-           hashedid.id:=Upper(sym.realname);
-         { First check for duplicates, this can change the symbol name
-           in case of a duplicate entry }
-         checkduplicate(hashedid,sym);
+         if checkdup then
+           begin
+             if sym.realname[1]='$' then
+               hashedid.id:=Copy(sym.realname,2,255)
+             else
+               hashedid.id:=Upper(sym.realname);
+             { First check for duplicates, this can change the symbol name
+               in case of a duplicate entry }
+             checkduplicate(hashedid,sym);
+           end;
          { Now we can insert the symbol, any duplicate entries
            are renamed to an unique (and for users unaccessible) name }
-         sym.ChangeOwnerAndName(SymList,hashedid.id);
+         if sym.realname[1]='$' then
+           sym.ChangeOwnerAndName(SymList,Copy(sym.realname,2,255))
+         else
+           sym.ChangeOwnerAndName(SymList,Upper(sym.realname));
          sym.Owner:=self;
       end;
 
diff --git a/compiler/symtable.pas b/compiler/symtable.pas
index 703f41f981..cb981215fe 100644
--- a/compiler/symtable.pas
+++ b/compiler/symtable.pas
@@ -371,7 +371,7 @@ implementation
            else
              Message1(unit_f_ppu_invalid_entry,tostr(b));
            end;
-           Insert(sym);
+           Insert(sym,false);
          until false;
       end;
 
@@ -1049,7 +1049,7 @@ implementation
             ) then
            begin
               { but private ids can be reused }
-              hsym:=search_class_member(tobjectdef(defowner),sym.name);
+              hsym:=search_class_member(tobjectdef(defowner),hashedid.id);
               if assigned(hsym) and
                  tsym(hsym).is_visible_for_object(tobjectdef(defowner),tobjectdef(defowner)) then
                 begin
@@ -1157,9 +1157,11 @@ implementation
                (vo_is_funcret in tabstractvarsym(sym).varoptions) and
                not((m_result in current_settings.modeswitches) and
                    (vo_is_result in tabstractvarsym(sym).varoptions)) then
-              HideSym(sym)
+              Hidesym(sym)
             else
               DuplicateSym(hashedid,sym,hsym);
+            result:=true;
+            exit;
           end;
 
         { check ObjectSymtable, skip this for funcret sym because
@@ -1424,7 +1426,7 @@ implementation
 
     procedure hidesym(sym:TSymEntry);
       begin
-        sym.realname:='$hidden'+sym.name;
+        sym.realname:='$hidden'+sym.realname;
         include(tsym(sym).symoptions,sp_hidden);
       end;