diff --git a/src/_cffi_src/openssl/bio.py b/src/_cffi_src/openssl/bio.py
index 1742e348122a..7cd94e37fd15 100644
--- a/src/_cffi_src/openssl/bio.py
+++ b/src/_cffi_src/openssl/bio.py
@@ -29,7 +29,6 @@
 int BIO_should_write(BIO *);
 int BIO_should_io_special(BIO *);
 int BIO_should_retry(BIO *);
-int BIO_reset(BIO *);
 
 BIO_ADDR *BIO_ADDR_new(void);
 void BIO_ADDR_free(BIO_ADDR *);