diff --git a/src/gsm/gea.c b/src/gsm/gea.c
index d4e599c..d95c03e 100644
--- a/src/gsm/gea.c
+++ b/src/gsm/gea.c
@@ -1,8 +1,6 @@
+/*! \file gea.c
+ * Implementation of GEA3 and GEA4. */
 /*
- * gea.c
- *
- * Implementation of GEA3 and GEA4
- *
  * Copyright (C) 2016 by Sysmocom s.f.m.c. GmbH
  *
  * All Rights Reserved
@@ -32,10 +30,7 @@
 
 /*! \addtogroup crypto
  *  @{
- */
-
-/*! \file gsm/gea.c */
-
+ * \file gsm/gea.c */
 
 /*! Performs the GEA4 algorithm as in 3GPP TS 55.226 V9.0.0
  *  \param[in,out] out Buffer for gamma for encrypted/decrypted