diff --git a/openssl-sys/src/x509.rs b/openssl-sys/src/x509.rs
index 99956fb0..847be83e 100644
--- a/openssl-sys/src/x509.rs
+++ b/openssl-sys/src/x509.rs
@@ -85,7 +85,7 @@ cfg_if! {
     } else {
         #[repr(C)]
         pub struct X509_OBJECT {
-            pub type_: X509_LOOKUP_TYPE,
+            pub type_: c_int,
             pub data: X509_OBJECT_data,
         }
         #[repr(C)]
diff --git a/systest/build.rs b/systest/build.rs
index 8ff03c87..e60e37ce 100644
--- a/systest/build.rs
+++ b/systest/build.rs
@@ -97,7 +97,9 @@ fn main() {
             || s == "bio_info_cb"
             || s.starts_with("CRYPTO_EX_")
     });
-    cfg.skip_struct(|s| s == "ProbeResult");
+    cfg.skip_struct(|s| {
+        s == "ProbeResult" || s == "X509_OBJECT_data" // inline union
+    });
     cfg.skip_fn(move |s| {
         s == "CRYPTO_memcmp" ||                 // uses volatile
 
@@ -114,7 +116,8 @@ fn main() {
     });
     cfg.skip_field_type(|s, field| {
         (s == "EVP_PKEY" && field == "pkey") ||      // union
-            (s == "GENERAL_NAME" && field == "d") // union
+            (s == "GENERAL_NAME" && field == "d") || // union
+            (s == "X509_OBJECT" && field == "data") // union
     });
     cfg.skip_signededness(|s| {
         s.ends_with("_cb")