diff --git a/openssl/src/ssl/mod.rs b/openssl/src/ssl/mod.rs
index 899ff1a6167e16ff25d13fa2aa852260a9b0fc35..ceb0d070a4d180fd9ab8cdfc9e11ced514a521cf 100644
--- a/openssl/src/ssl/mod.rs
+++ b/openssl/src/ssl/mod.rs
@@ -654,14 +654,18 @@ impl SslContextBuilder {
         }
     }
 
-    /// Sets a custom X509Store for verifying peer certificates
+    /// Sets a custom X509Store for verifying peer certificates.
+    ///
+    /// Requires the `v102` feature and OpenSSL 1.0.2, or the `v110` feature and OpenSSL 1.1.0.
     #[cfg(any(all(feature = "v102", ossl102), all(feature = "v110", ossl110)))]
     pub fn set_verify_cert_store(&mut self, cert_store: X509Store) -> Result<(), ErrorStack> {
         unsafe {
             // set0 will free, set1 increments, and then requires a free
             let ptr = cert_store.as_ptr();
+            let result = cvt(ffi::SSL_CTX_set0_verify_cert_store(self.as_ptr(), ptr) as c_int).map(|_|());
+            
             mem::forget(cert_store);
-            cvt(ffi::SSL_CTX_set0_verify_cert_store(self.as_ptr(), ptr) as c_int).map(|_|())
+            result
         }
     }