diff --git a/src/lib.rs b/src/lib.rs
index fb929e9..6218aad 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2254,18 +2254,19 @@ fn _pgpVerifySig(dig: *const PgpDig,
 
 ffi!(
 /// Merge the PGP packets of two certificates
-/// 
+///
 /// The certificates must describe the same public key. The call should merge
 /// important pgp packets (self-signatures, new subkeys, ...) and remove duplicates.
-/// 
-/// @param pkts1		OpenPGP pointer to a buffer with the first certificate
-/// @param pkts1len	length of the buffer with the first certificate
-/// @param pkts2		OpenPGP pointer to a buffer with the second certificate
-/// @param pkts2len	length of the buffer with the second certificate
-/// @param pktsm         [out] merged certificate (malloced)
-/// @param pktsmlen      [out] length of merged certificate
-/// @param flags		merge flags (currently not used, must be zero)
-/// @return 		RPMRC_OK on success 
+///
+/// - `pkts1` - OpenPGP pointer to a buffer with the first certificate
+/// - `pkts1len` - length of the buffer with the first certificate
+/// - `pkts2` - OpenPGP pointer to a buffer with the second certificate
+/// - `pkts2len` - length of the buffer with the second certificate
+/// - `pktsm` - merged certificate (malloced)
+/// - `pktsmlen` - length of merged certificate
+/// - `flags` - merge flags (currently not used, must be zero)
+///
+/// Returns `RPMRC_OK` on success.
 fn _pgpPubkeyMerge(
     pkts1: *const u8, pkts1len: size_t,
     pkts2: *const u8, pkts2len: size_t,