diff --git a/doc/crypto/CMS_sign_add1_signer.pod b/doc/crypto/CMS_sign_add1_signer.pod
index c5e4f198d..bda3ca2ad 100644
--- a/doc/crypto/CMS_sign_add1_signer.pod
+++ b/doc/crypto/CMS_sign_add1_signer.pod
@@ -2,7 +2,7 @@
 
 =head1 NAME
 
- CMS_sign_add_signer, CMS_SignerInfo_sign - add a signer to a CMS_ContentInfo signed data structure.
+ CMS_sign_add1_signer, CMS_SignerInfo_sign - add a signer to a CMS_ContentInfo signed data structure.
 
 =head1 SYNOPSIS