diff --git a/packages/pastojs/src/fppas2js.pp b/packages/pastojs/src/fppas2js.pp
index 7ba0c2c8bf..7655105241 100644
--- a/packages/pastojs/src/fppas2js.pp
+++ b/packages/pastojs/src/fppas2js.pp
@@ -18287,19 +18287,41 @@ var
     ObjLit.Expr:=JS;
   end;
 
+  function VarTypeInfoAlreadyCreated(VarType: TPasType): boolean;
+  var
+    i: Integer;
+    PrevMember: TPasElement;
+  begin
+    i:=Index-1;
+    while (i>=0) do
+      begin
+      PrevMember:=TPasElement(Members[i]);
+      if (PrevMember is TPasVariable) and (TPasVariable(PrevMember).VarType=VarType)
+          and IsElementUsed(PrevMember) then
+        exit(true);
+      dec(i);
+      end;
+    Result:=false;
+  end;
+
 var
   JSTypeInfo: TJSElement;
   aName: String;
   aResolver: TPas2JSResolver;
   Attr: TPasExprArray;
+  VarType: TPasType;
 begin
   Result:=nil;
   aResolver:=AContext.Resolver;
   V:=TPasVariable(Members[Index]);
-  if (V.VarType<>nil) and (V.VarType.Name='') then
-    CreateRTTIAnonymous(V.VarType,AContext);
+  VarType:=V.VarType;
+  if (VarType<>nil) and (VarType.Name='') then
+    begin
+    if not VarTypeInfoAlreadyCreated(VarType) then
+      CreateRTTIAnonymous(VarType,AContext);
+    end;
 
-  JSTypeInfo:=CreateTypeInfoRef(V.VarType,AContext,V);
+  JSTypeInfo:=CreateTypeInfoRef(VarType,AContext,V);
   OptionsEl:=nil;
   // Note: create JSTypeInfo first, it may raise an exception
   Call:=CreateCallExpression(V);
diff --git a/packages/pastojs/tests/tcmodules.pas b/packages/pastojs/tests/tcmodules.pas
index 12f01bc64e..96966f7cc4 100644
--- a/packages/pastojs/tests/tcmodules.pas
+++ b/packages/pastojs/tests/tcmodules.pas
@@ -28690,6 +28690,7 @@ begin
   Add('    VarShI: shortint;');
   Add('    VarBy: byte;');
   Add('    VarExt: longint external name ''VarExt'';');
+  Add('    ArrA, ArrB: array of byte;');
   Add('  end;');
   Add('var p: pointer;');
   Add('  Obj: tobject;');
@@ -28713,8 +28714,12 @@ begin
     '    this.VarW = 0;',
     '    this.VarShI = 0;',
     '    this.VarBy = 0;',
+    '    this.ArrA = [];',
+    '    this.ArrB = [];',
     '  };',
     '  this.$final = function () {',
+    '    this.ArrA = undefined;',
+    '    this.ArrB = undefined;',
     '  };',
     '  var $r = this.$rtti;',
     '  $r.addField("VarLI", rtl.longint);',
@@ -28728,6 +28733,11 @@ begin
     '  $r.addField("VarShI", rtl.shortint);',
     '  $r.addField("VarBy", rtl.byte);',
     '  $r.addField("VarExt", rtl.longint);',
+    '  $mod.$rtti.$DynArray("TObject.ArrB$a", {',
+    '    eltype: rtl.byte',
+    '  });',
+    '  $r.addField("ArrA", $mod.$rtti["TObject.ArrB$a"]);',
+    '  $r.addField("ArrB", $mod.$rtti["TObject.ArrB$a"]);',
     '});',
     'this.p = null;',
     'this.Obj = null;',
@@ -29747,7 +29757,7 @@ begin
   StartProgram(false);
   Add('type');
   Add('  TFloatRec = record');
-  Add('    d: array of char;');
+  Add('    c,d: array of char;');
   // Add('    i: array of array of longint;');
   Add('  end;');
   Add('var p: pointer;');
@@ -29760,11 +29770,13 @@ begin
   CheckSource('TestRTTI_Record',
     LinesToStr([ // statements
     'rtl.recNewT($mod, "TFloatRec", function () {',
+    '  this.c = [];',
     '  this.d = [];',
     '  this.$eq = function (b) {',
-    '    return this.d === b.d;',
+    '    return (this.c === b.c) && (this.d === b.d);',
     '  };',
     '  this.$assign = function (s) {',
+    '    this.c = s.c;',
     '    this.d = s.d;',
     '    return this;',
     '  };',
@@ -29772,6 +29784,7 @@ begin
     '    eltype: rtl.char',
     '  });',
     '  var $r = $mod.$rtti.$Record("TFloatRec", {});',
+    '  $r.addField("c", $mod.$rtti["TFloatRec.d$a"]);',
     '  $r.addField("d", $mod.$rtti["TFloatRec.d$a"]);',
     '});',
     'this.p = null;',