diff --git a/doc/man3/RIPEMD160_Init.pod b/doc/man3/RIPEMD160_Init.pod
index aec64419c1..27ff3779a7 100644
--- a/doc/man3/RIPEMD160_Init.pod
+++ b/doc/man3/RIPEMD160_Init.pod
@@ -13,7 +13,7 @@ RIPEMD-160 hash function
                           unsigned char *md);
 
  int RIPEMD160_Init(RIPEMD160_CTX *c);
- int RIPEMD160_Update(RIPEMD_CTX *c, const void *data, unsigned long len);
+ int RIPEMD160_Update(RIPEMD160_CTX *c, const void *data, unsigned long len);
  int RIPEMD160_Final(unsigned char *md, RIPEMD160_CTX *c);
 
 =head1 DESCRIPTION