diff --git a/openssl/src/x509/mod.rs b/openssl/src/x509/mod.rs
index 7b83707d..c0594746 100644
--- a/openssl/src/x509/mod.rs
+++ b/openssl/src/x509/mod.rs
@@ -616,7 +616,7 @@ impl X509 {
 
 impl Clone for X509 {
     fn clone(&self) -> X509 {
-        self.to_owned()
+        X509Ref::to_owned(self)
     }
 }
 
diff --git a/openssl/src/x509/tests.rs b/openssl/src/x509/tests.rs
index e2d74735..76eeba3f 100644
--- a/openssl/src/x509/tests.rs
+++ b/openssl/src/x509/tests.rs
@@ -398,3 +398,10 @@ fn signature() {
     assert_eq!(algorithm.object().nid(), nid::SHA256WITHRSAENCRYPTION);
     assert_eq!(algorithm.object().to_string(), "sha256WithRSAEncryption");
 }
+
+#[test]
+fn clone_x509() {
+    let cert = include_bytes!("../../test/cert.pem");
+    let cert = X509::from_pem(cert).unwrap();
+    cert.clone();
+}