diff --git a/docs/manual/mod/mod_disk_cache.xml b/docs/manual/mod/mod_disk_cache.xml
index 5c415f7f51..66e7555c99 100644
--- a/docs/manual/mod/mod_disk_cache.xml
+++ b/docs/manual/mod/mod_disk_cache.xml
@@ -24,14 +24,19 @@ This module is experimental. Documentation is still under development...
 
 <directivesynopsis>
 <name>CacheRoot</name>
-<description>The directory to store cache files</description>
+<description>The directory root under which cache files are stored</description>
 <syntax>CacheRoot <em>directory</em></syntax>
 <default>none</default>
 <contextlist><context>server config</context></contextlist>
 
 <usage>
     <p>The <directive>CacheRoot</directive> directive defines the name of the directory
-    on the disk to contain cache files. What is happening if not set ?</p>
+    on the disk to contain cache files. If the mod_disk_cache module has been loaded
+    or compiled in to the Apache server, this directive <em>must</em> be defined. Failing to
+    provide a value for <directive>CacheRoot</directive> will result in a configuration
+    file processing error. The <directive>CacheDirLevels</directive> and
+    <directive>CacheDirLength</directive> directives define the structure of the directories
+    under the specified root directory.</p>
 
 <example>
   CacheRoot c:/cacheroot <br />
@@ -47,14 +52,14 @@ This module is experimental. Documentation is still under development...
 <contextlist><context>server config</context></contextlist>
 
 <usage>
-    <p>The <directive>MCacheSize</directive> directive sets the desired disk space
+    <p>The <directive>CacheSize</directive> directive sets the desired disk space
     usage of the cache, in KBytes (1024-byte units). This directive does not put a 
     hard limit on the size of the cache. The garbage collector will delete files
     until the usage is at or below the settings. Always use a value that is lower
     than the available disk space.</p>
 
 <example>
-  MCacheSize  5000000 <br />
+  CacheSize  5000000 <br />
 </example>
 </usage>
 </directivesynopsis>
@@ -256,4 +261,4 @@ The <directive>CacheGcMemUsage</directive> directive is currently <em>not</em> i
 </usage>
 </directivesynopsis>
 
-</modulesynopsis>
\ No newline at end of file
+</modulesynopsis>