diff --git a/guacamole-common-js/doc/guacamole-osk.dtd b/guacamole-common-js/doc/guacamole-osk.dtd
deleted file mode 100644
index e3a468980..000000000
--- a/guacamole-common-js/doc/guacamole-osk.dtd
+++ /dev/null
@@ -1,32 +0,0 @@
-<!--
-
-<!DOCTYPE keyboard PUBLIC
-    "-//Guacamole/Guacamole Onscreen Keyboard DTD 0.6.0//EN"
-        "http://guac-dev.org/pub/dtd/guacamole-osk-0.6.0.dtd">
-
--->
-
-<!ELEMENT keyboard ((row|column)*)>
-    <!ATTLIST keyboard size CDATA #REQUIRED>
-    <!ATTLIST keyboard lang CDATA #REQUIRED>
-    <!ATTLIST keyboard layout CDATA #REQUIRED>
-
-<!ELEMENT column (row*)>
-    <!ATTLIST column align (left|center|right) "left">
-
-<!ELEMENT row ((column|gap|key)*)>
-
-<!ELEMENT gap EMPTY>
-    <!ATTLIST gap size CDATA #IMPLIED>
-
-<!ELEMENT key (cap*)>
-    <!ATTLIST key size CDATA #IMPLIED>
-    <!ATTLIST key class CDATA #IMPLIED>
-
-<!ELEMENT cap ANY>
-    <!ATTLIST cap if CDATA #IMPLIED>
-    <!ATTLIST cap modifier CDATA #IMPLIED>
-    <!ATTLIST cap keysym CDATA #IMPLIED>
-    <!ATTLIST cap sticky (true|false) "false">
-    <!ATTLIST cap class CDATA #IMPLIED>
-