diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
index 947c14f5cd..cba6491ab9 100644
--- a/lib/vtls/openssl.c
+++ b/lib/vtls/openssl.c
@@ -1103,7 +1103,8 @@ int cert_stuff(struct Curl_easy *data,
       EVP_PKEY_free(pktmp);
     }
 
-#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_IS_BORINGSSL)
+#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_IS_BORINGSSL) && \
+    !defined(OPENSSL_NO_DEPRECATED_3_0)
     {
       /* If RSA is used, don't check the private key if its flags indicate
        * it doesn't support it. */