diff --git a/test/util.cc b/test/util.cc
index 4ff34a91..d3f2dc73 100644
--- a/test/util.cc
+++ b/test/util.cc
@@ -39,6 +39,11 @@ std::locale get_locale(const char* name, const char* alt_name) {
   auto loc = do_get_locale(name);
   if (loc == std::locale::classic() && alt_name)
     loc = do_get_locale(alt_name);
+#ifdef __OpenBSD__
+    // Locales are not working in OpenBSD:
+    // https://github.com/fmtlib/fmt/issues/3670.
+    loc = std::locale::classic();
+#endif
   if (loc == std::locale::classic())
     fmt::print(stderr, "{} locale is missing.\n", name);
   return loc;