diff --git a/x11-wm/blackbox/files/patch-lib_Unicode.hh b/x11-wm/blackbox/files/patch-lib_Unicode.hh
new file mode 100644
index 000000000000..9308811909f9
--- /dev/null
+++ b/x11-wm/blackbox/files/patch-lib_Unicode.hh
@@ -0,0 +1,11 @@
+--- lib/Unicode.hh.orig	2005-01-03 09:42:53 UTC
++++ lib/Unicode.hh
+@@ -37,7 +37,7 @@ namespace bt
+   /*
+    * Unicode character type.
+    */
+-  typedef unsigned int Uchar;
++  typedef char32_t Uchar;
+ 
+   /*
+    * Unicode string type.