1 files changed, 3 insertions, 1 deletions

diff --git a/src/lib/libcrypto/doc/PKCS7_decrypt.pod b/src/lib/libcrypto/doc/PKCS7_decrypt.pod
index b0ca067b89..325699d0b6 100644
--- a/src/lib/libcrypto/doc/PKCS7_decrypt.pod
+++ b/src/lib/libcrypto/doc/PKCS7_decrypt.pod
@@ -6,7 +6,9 @@ PKCS7_decrypt - decrypt content from a PKCS#7 envelopedData structure
 
 =head1 SYNOPSIS
 
-int PKCS7_decrypt(PKCS7 *p7, EVP_PKEY *pkey, X509 *cert, BIO *data, int flags);
+ #include <openssl/pkcs7.h>
+
+ int PKCS7_decrypt(PKCS7 *p7, EVP_PKEY *pkey, X509 *cert, BIO *data, int flags);
 
 =head1 DESCRIPTION