diff --git a/README.txt b/README.txt
index 2bf543d..1650acf 100644
--- a/README.txt
+++ b/README.txt
@@ -8,7 +8,7 @@ distributions and building instructions for Milsko GUI Toolkit.
 
   Milsko requires either 
   * A Windows environment with GDI (so anything NT or 9x) 
-  * A Unix-like environment with X11 for runtime. 
+  * A Unix-like environment with Wayland and/or X11 for runtime. 
 
   To build Milsko for Windows, you must have one of following compilers: 
   * Visual C++ 6.0 or newer 
diff --git a/tools/readme.pl b/tools/readme.pl
index eab9cd6..182b010 100755
--- a/tools/readme.pl
+++ b/tools/readme.pl
@@ -61,7 +61,7 @@ l("");
 l("  Milsko requires either");
 l("  * A Windows environment with GDI (so anything NT or 9x)");
 #l("  * A MacOS environment with Cocoa (10.4 or above supported)");
-l("  * A Unix-like environment with X11 for runtime.");
+l("  * A Unix-like environment with Wayland and/or X11 for runtime.");
 l("");
 l("  To build Milsko for Windows, you must have one of following compilers:");
 l("  * Visual C++ 6.0 or newer");