diff --git a/wrapper/python/wolfssl/wolfssl/build_ffi.py b/wrapper/python/wolfssl/wolfssl/build_ffi.py
index 5d35566da..24d5e401a 100644
--- a/wrapper/python/wolfssl/wolfssl/build_ffi.py
+++ b/wrapper/python/wolfssl/wolfssl/build_ffi.py
@@ -63,6 +63,7 @@ ffi.cdef(
     void  wolfSSL_free(void*);
 
     int wolfSSL_set_fd(void*, int);
+    int wolfSSL_negotiate(void*);
     int wolfSSL_write(void*, const void*, int);
     int wolfSSL_read(void*, void*, int);
     int wolfSSL_shutdown(void*);