diff --git a/src/main/version.cl b/src/main/version.cl
index 9bcc0d7..a997355 100644
--- a/src/main/version.cl
+++ b/src/main/version.cl
@@ -23,11 +23,15 @@
 (defparameter *clash-minor-version* 0
   "Minor release version of CLASH.")
 
+(defparameter *clash-patch-level* 0
+  "Current patch-level of CLASH.")
+
 (defun clash-version-string ()
   "Returns a string containing the CLASH release version."
-  (format nil "~D.~D"
+  (format nil "~D.~D.~D"
 	  *clash-major-version*
-	  *clash-minor-version*))
+	  *clash-minor-version*
+	  *clash-patch-level*))
 
 ;;;; HTTP Protocol Version Handling
 
diff --git a/src/package.cl b/src/package.cl
index ae3922f..dd7d74d 100644
--- a/src/package.cl
+++ b/src/package.cl
@@ -106,6 +106,7 @@
    ;; Version
    #:*clash-major-version*
    #:*clash-minor-version*
+   #:*clash-patch-level*
    #:clash-version-string
    #:http-version
    #:http-version-major