diff --git a/vxworks-6.9/target/src/openssl/OPENSSL/openssl-3.5.0/apps/x509.c b/vxworks-6.9/target/src/openssl/OPENSSL/openssl-3.5.0/apps/x509.c
index fdae8f38..610de16a 100644
--- a/vxworks-6.9/target/src/openssl/OPENSSL/openssl-3.5.0/apps/x509.c
+++ b/vxworks-6.9/target/src/openssl/OPENSSL/openssl-3.5.0/apps/x509.c
@@ -306,6 +306,8 @@ int x509_main(int argc, char **argv)
     int subject_hash_old = 0, issuer_hash_old = 0;
 #endif
 
+    reset_unknown();
+
     ctx = X509_STORE_new();
     if (ctx == NULL)
         goto err;