diff --git a/packages/pastojs/src/fppas2js.pp b/packages/pastojs/src/fppas2js.pp
index b0b37b48c2..f40cf9ad53 100644
--- a/packages/pastojs/src/fppas2js.pp
+++ b/packages/pastojs/src/fppas2js.pp
@@ -6686,6 +6686,7 @@ var
   ModeSwitches: TModeSwitches;
   aResolver: TPas2JSResolver;
   LeftTypeEl, RightTypeEl: TPasType;
+  OldAccess: TCtxAccess;
 begin
   Result:=Nil;
   aResolver:=AContext.Resolver;
@@ -6704,14 +6705,8 @@ begin
       end;
   end;
 
-  if AContext.Access<>caRead then
-    begin
-    {$IFDEF VerbosePas2JS}
-    writeln('TPasToJSConverter.ConvertBinaryExpression OpCode=',El.OpCode,' AContext.Access=',AContext.Access);
-    {$ENDIF}
-    DoError(20170209152633,nVariableIdentifierExpected,sVariableIdentifierExpected,[],El);
-    end;
-
+  OldAccess:=AContext.Access;
+  AContext.Access:=caRead;
   Call:=nil;
   A:=ConvertExpression(El.left,AContext);
   B:=nil;
@@ -6942,6 +6937,7 @@ begin
         end;
       end;
   finally
+    AContext.Access:=OldAccess;
     if Result=nil then
       begin
       A.Free;
@@ -21610,6 +21606,7 @@ begin
     ParamContext.Arg:=TargetArg;
     ParamContext.Expr:=El;
     ParamContext.ResolvedExpr:=ResolvedEl;
+    writeln('AAA1 TPasToJSConverter.CreateProcCallArgRef ',GetObjName(El));
     FullGetter:=ConvertExpression(El,ParamContext);
     // FullGetter is now a full JS expression to retrieve the value.
     if ParamContext.ReusingReference then
@@ -21767,10 +21764,17 @@ begin
       end
     else
       begin
-      {$IFDEF VerbosePas2JS}
-      writeln('TPasToJSConverter.CreateProcCallArgRef FullGetter=',GetObjName(FullGetter),' Setter=',GetObjName(ParamContext.Setter));
-      {$ENDIF}
-      RaiseNotSupported(El,AContext,20170213230336);
+      // getter is the result of an operation
+
+      // create "p:FullGetter"
+      AddVar(TempRefParamName,FullGetter);
+      FullGetter:=nil;
+
+      // GetExpr  "this.a"
+      GetExpr:=CreatePrimitiveDotExpr('this.'+TempRefParamName,El);
+
+      // SetExpr  "raise EPropReadOnly"
+      SetExpr:=CreateRaisePropReadOnly(El);
       end;
 
     {$IFDEF VerbosePas2JS}
diff --git a/packages/pastojs/tests/tcmodules.pas b/packages/pastojs/tests/tcmodules.pas
index 981aff4945..92f2a649cb 100644
--- a/packages/pastojs/tests/tcmodules.pas
+++ b/packages/pastojs/tests/tcmodules.pas
@@ -22915,6 +22915,8 @@ begin
   'begin',
   '  DoIt(f.toStr);',
   '  DoIt(f.toStr());',
+  '  (f*f).toStr;',
+  '  DoIt((f*f).toStr);',
   '']);
   ConvertProgram;
   CheckSource('TestTypeHelper_Double',
@@ -22949,6 +22951,24 @@ begin
     '      this.p.f = v;',
     '    }',
     '}));',
+    '$mod.THelper.ToStr.call({',
+    '  a: $mod.f * $mod.f,',
+    '  get: function () {',
+    '      return this.a;',
+    '    },',
+    '  set: function (v) {',
+    '      rtl.raiseE("EPropReadOnly");',
+    '    }',
+    '});',
+    '$mod.DoIt($mod.THelper.ToStr.call({',
+    '  a: $mod.f * $mod.f,',
+    '  get: function () {',
+    '      return this.a;',
+    '    },',
+    '  set: function (v) {',
+    '      rtl.raiseE("EPropReadOnly");',
+    '    }',
+    '}));',
     '']));
 end;