diff --git a/apps/app_jack.c b/apps/app_jack.c
index 3f8dbae19d..02d7a21dd6 100644
--- a/apps/app_jack.c
+++ b/apps/app_jack.c
@@ -26,7 +26,7 @@
  * and output jack port so that the audio can be processed through
  * another application, or to play audio from another application.
  *
- * \arg http://www.jackaudio.org/
+ * \extref http://www.jackaudio.org/
  *
  * \note To install libresample, check it out of the following repository:
  * <code>$ svn co http://svn.digium.com/svn/thirdparty/libresample/trunk</code>
diff --git a/main/xmldoc.c b/main/xmldoc.c
index 230b8a4c80..2ddb201796 100644
--- a/main/xmldoc.c
+++ b/main/xmldoc.c
@@ -19,6 +19,8 @@
  * \brief XML Documentation API
  *
  * \author Eliel C. Sardanons (LU1ALY) <eliels@gmail.com>
+ *
+ * \extref libxml2 http://www.xmlsoft.org/
  */
 
 #include "asterisk.h"