diff --git a/guacamole/src/main/resources/net/sourceforge/guacamole/net/protocols/rdp.xml b/guacamole/src/main/resources/net/sourceforge/guacamole/net/protocols/rdp.xml
index 7655f7fc9..b9c16440f 100644
--- a/guacamole/src/main/resources/net/sourceforge/guacamole/net/protocols/rdp.xml
+++ b/guacamole/src/main/resources/net/sourceforge/guacamole/net/protocols/rdp.xml
@@ -10,7 +10,7 @@
 
     <param name="width"           type="numeric"  title="Display width"/>
     <param name="height"          type="numeric"  title="Display height"/>
-    <param name="color-depth" type="text" title="Color depth">
+    <param name="color-depth"     type="enum" title="Color depth">
         <option value="8">256 color</option>
         <option value="16">Low color (16-bit)</option>
         <option value="24">True color (24-bit)</option>
diff --git a/guacamole/src/main/resources/net/sourceforge/guacamole/net/protocols/vnc.xml b/guacamole/src/main/resources/net/sourceforge/guacamole/net/protocols/vnc.xml
index dbb274a62..d7a5c6e5f 100644
--- a/guacamole/src/main/resources/net/sourceforge/guacamole/net/protocols/vnc.xml
+++ b/guacamole/src/main/resources/net/sourceforge/guacamole/net/protocols/vnc.xml
@@ -7,7 +7,7 @@
     <param name="read-only"     type="boolean" title="Read-only"/>
     <param name="swap-red-blue" type="boolean" title="Swap red/blue components"/>
 
-    <param name="color-depth" type="text" title="Color depth">
+    <param name="color-depth" type="enum" title="Color depth">
         <option value="8">256 color</option>
         <option value="16">Low color (16-bit)</option>
         <option value="24">True color (24-bit)</option>