diff --git a/openair2/PHY_INTERFACE/defs.h b/openair2/PHY_INTERFACE/defs.h
index fa3a02d88f171f098a94b11dbe5b725fb28bf9f9..97fafad5f1c7c8378297a7eb000d327789a0b919 100755
--- a/openair2/PHY_INTERFACE/defs.h
+++ b/openair2/PHY_INTERFACE/defs.h
@@ -33,8 +33,6 @@
 * \date 2011
 * \version 0.5
 * \mail navid.nikaein@eurecom.fr or openair_tech@eurecom.fr
-* @ingroup _mac
-
 */
 
 #ifndef __MAC_PHY_PRIMITIVES_H__
@@ -59,6 +57,10 @@ do {
     mac_xface->macphy_exit(temp);                                                           \
 } while(0)
 
+/** @defgroup _phy_if MAC-PHY interface
+ * @ingroup _oai2
+ * @{
+ */
 /*! \brief MACPHY Interface */
 typedef struct {
   /// Pointer function that initializes L2
@@ -329,3 +331,4 @@ typedef struct {
 #endif
 
 
+/** @} */