diff --git a/include/osmocom/crypt/auth.h b/include/osmocom/crypt/auth.h
index af4ae15..2f88a3a 100644
--- a/include/osmocom/crypt/auth.h
+++ b/include/osmocom/crypt/auth.h
@@ -2,9 +2,7 @@
 
 /*! \addtogroup auth
  *  @{
- */
-
-/*! \file auth.h */
+ * \file auth.h */
 
 #include <stdint.h>
 
diff --git a/include/osmocom/crypt/gprs_cipher.h b/include/osmocom/crypt/gprs_cipher.h
index c302f10..20f0514 100644
--- a/include/osmocom/crypt/gprs_cipher.h
+++ b/include/osmocom/crypt/gprs_cipher.h
@@ -1,3 +1,5 @@
+/*! \file gprs_cipher.h */
+
 #pragma once
 
 #include <osmocom/core/linuxlist.h>