diff --git a/modules/conop/doc/aminoacid.rst b/modules/conop/doc/aminoacid.rst
index a33104ca6b91085b63a3a0df02b100ebd1d9c2d7..7867e8a0cfcf312f80202782b23a59563e6a636d 100644
--- a/modules/conop/doc/aminoacid.rst
+++ b/modules/conop/doc/aminoacid.rst
@@ -23,7 +23,7 @@ Converter functions
 --------------------------------------------------------------------------------
 .. function:: ResidueToAminoAcid(residue)
               ResidueNameToAminoAcid(rname) 
-              OneLetterCodeNameToAminoAcid(olc) 
+              OneLetterCodeToAminoAcid(olc) 
 
   :return: Amino acid from residue, residue name (three-letter-code)
            or one-letter-code. Returns XXX if residue, residue name or