diff --git a/src/ce_d2syn.pas b/src/ce_d2syn.pas
index d13913b2..60aba8df 100644
--- a/src/ce_d2syn.pas
+++ b/src/ce_d2syn.pas
@@ -265,6 +265,7 @@ end;
 constructor TSynD2Syn.create(aOwner: TComponent);
 begin
 	inherited create(aOwner);
+  SetSubComponent(true);
 
   DefaultFilter:= 'D source|*.d|D interface|*.di';
 
diff --git a/src/ce_txtsyn.pas b/src/ce_txtsyn.pas
index bf4c85e8..60d3b33d 100644
--- a/src/ce_txtsyn.pas
+++ b/src/ce_txtsyn.pas
@@ -59,6 +59,7 @@ uses
 constructor TSynTxtSyn.create(aOwner: TComponent);
 begin
   inherited;
+  SetSubComponent(true);
   //
   fSymAttribs := TSynHighlighterAttributes.Create('Symbols', 'Symbols');
   fTxtAttribs := TSynHighlighterAttributes.Create('Text', 'Text');