diff --git a/openssl/src/x509/mod.rs b/openssl/src/x509/mod.rs
index decb005efdc704258bf8be421e017c87f0242922..a6ead63a2e564d2504e8370cbd800d50f7c0fb61 100644
--- a/openssl/src/x509/mod.rs
+++ b/openssl/src/x509/mod.rs
@@ -1603,7 +1603,7 @@ impl X509RevokedRef {
             // A critical value of 0 or 1 suggests success, but a null pointer
             // was returned so something went wrong.
             (0 | 1, None) => Err(ErrorStack::get()),
-            (..=-3 | 2.., _) => panic!("OpenSSL should only return -2, -1, 0, or 1 for an extension's criticality but it returned {}", critical),
+            (c_int::MIN..=-2 | 2.., _) => panic!("OpenSSL should only return -2, -1, 0, or 1 for an extension's criticality but it returned {}", critical),
         }
     }
 }