diff --git a/openair1/PHY/impl_defs_top.h b/openair1/PHY/impl_defs_top.h
index f9f712b052532327810a67ac6b415e92a56e70e1..1a15758c13e624e43af6ca25be61377fd4fc586b 100755
--- a/openair1/PHY/impl_defs_top.h
+++ b/openair1/PHY/impl_defs_top.h
@@ -83,7 +83,6 @@
  * @{
  * This module is responsible for defining and processing the PHY procedures (TX/RX) related to transport and physical channels.
  * @}
- * @}
 
  * @defgroup _PHY_PROCEDURES_ Physical Layer Procedures
  * @ingroup _ref_implementation_
@@ -91,6 +90,9 @@
  * This module is responsible for defining and processing the PHY procedures (TX/RX) related to transport and physical channels.
  * @}
 
+ * @}
+ * @}
+
  */
 
 #include "types.h"
@@ -98,7 +100,7 @@
 
 
 
-/**@addtogroup _PHY_STRUCTURES_
+/** @addtogroup _PHY_STRUCTURES_
  * @{
 */
 #define NUMBER_OF_OFDM_CARRIERS (frame_parms->ofdm_symbol_size)
@@ -493,6 +495,5 @@ typedef struct {
 #define MCS_TABLE_LENGTH_MAX 64
 
 #endif //__PHY_IMPLEMENTATION_DEFS_H__ 
-/**@}
-  *@}
+/**@} 
 */