diff --git a/ssl/test/test_config.cc b/ssl/test/test_config.cc
index 1cf316d..95c85a8 100644
--- a/ssl/test/test_config.cc
+++ b/ssl/test/test_config.cc
@@ -178,12 +178,14 @@
       size_t len;
       if (!EVP_DecodedLength(&len, strlen(argv[i]))) {
         fprintf(stderr, "Invalid base64: %s\n", argv[i]);
+        return false;
       }
       std::unique_ptr<uint8_t[]> decoded(new uint8_t[len]);
       if (!EVP_DecodeBase64(decoded.get(), &len, len,
                             reinterpret_cast<const uint8_t *>(argv[i]),
                             strlen(argv[i]))) {
         fprintf(stderr, "Invalid base64: %s\n", argv[i]);
+        return false;
       }
       base64_field->assign(reinterpret_cast<const char *>(decoded.get()), len);
       continue;