diff --git a/openssl-sys/src/lib.rs b/openssl-sys/src/lib.rs
index b0ae686d..b7a61c52 100644
--- a/openssl-sys/src/lib.rs
+++ b/openssl-sys/src/lib.rs
@@ -873,6 +873,7 @@ extern "C" {
                              out: *mut u8) -> c_int;
 
     pub fn RAND_bytes(buf: *mut u8, num: c_int) -> c_int;
+    pub fn RAND_status() -> c_int;
 
     pub fn RSA_new() -> *mut RSA;
     pub fn RSA_free(rsa: *mut RSA);