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-rw-r--r--doc/crypto/EVP_BytesToKey.pod2
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/crypto/EVP_BytesToKey.pod b/doc/crypto/EVP_BytesToKey.pod
index d375c46e0..abbbdb2d4 100644
--- a/doc/crypto/EVP_BytesToKey.pod
+++ b/doc/crypto/EVP_BytesToKey.pod
@@ -55,7 +55,7 @@ the IV.
=head1 RETURN VALUES
-EVP_BytesToKey() returns the size of the derived key in bytes.
+EVP_BytesToKey() returns the size of the derived key in bytes, or 0 on error.
=head1 SEE ALSO