diff --git a/vcl/inc/textrender.hxx b/vcl/inc/textrender.hxx
index 40c253f1b889..eb0280535e33 100644
--- a/vcl/inc/textrender.hxx
+++ b/vcl/inc/textrender.hxx
@@ -22,7 +22,6 @@
 
 #include "salgdi.hxx"
 
-class ImplLayoutArgs;
 class ImplFontMetricData;
 class PhysicalFontCollection;
 class PhysicalFontFace;
diff --git a/vcl/inc/unx/salgdi.h b/vcl/inc/unx/salgdi.h
index c93d18319e91..56f587e521a8 100644
--- a/vcl/inc/unx/salgdi.h
+++ b/vcl/inc/unx/salgdi.h
@@ -42,18 +42,13 @@
 /* From <X11/Intrinsic.h> */
 typedef unsigned long Pixel;
 
-class FontAttributes;
-class FontSelectPattern;
 class SalBitmap;
 class SalColormap;
 class SalDisplay;
 class SalFrame;
-class X11Pixmap;
 class X11SalVirtualDevice;
 class X11SalGraphicsImpl;
 class X11SkiaSalVirtualDevice;
-class FreetypeFont;
-class ImplLayoutArgs;
 class PhysicalFontCollection;
 class PhysicalFontFace;
 class SalGraphicsImpl;