diff --git a/src/crypto/crypto_context.cc b/src/crypto/crypto_context.cc
index 8f1e6dc7110b11..c7574e67f03f03 100644
--- a/src/crypto/crypto_context.cc
+++ b/src/crypto/crypto_context.cc
@@ -1164,7 +1164,7 @@ void SecureContext::LoadPKCS12(const FunctionCallbackInfo<Value>& args) {
     X509* ca = sk_X509_value(extra_certs.get(), i);
 
     X509_STORE_add_cert(sc->GetCertStoreOwnedByThisSecureContext(), ca);
-    SSL_CTX_add_client_CA(sc->ctx_.get(), ca);
+    CHECK_EQ(1, SSL_CTX_add_client_CA(sc->ctx_.get(), ca));
   }
   ret = true;