diff --git a/message_cache.cc b/message_cache.cc
index ff00178..39f684b 100644
--- a/message_cache.cc
+++ b/message_cache.cc
@@ -225,7 +225,7 @@ namespace pEp {
             stringlist_t **keylist,
             PEP_rating *rating,
             PEP_decrypt_flags_t *flags
-    )
+        )
     {
         if (!src || emptystr(src->id))
             return PEP_ILLEGAL_VALUE;
diff --git a/message_cache.hh b/message_cache.hh
index 2787db2..2c7f34f 100644
--- a/message_cache.hh
+++ b/message_cache.hh
@@ -22,7 +22,7 @@ namespace pEp {
         std::mutex _mtx;
 
     public:
-        enum which { msg_src, msg_dst };
+        enum which { msg_src = 0, msg_dst = 1 };
 
 		static PEP_STATUS cache_mime_decode_message(
 				const char *mimetext,