diff --git a/test/format-test.cc b/test/format-test.cc
index 0d931e4..deea665 100644
--- a/test/format-test.cc
+++ b/test/format-test.cc
@@ -153,12 +153,12 @@ template <typename Float> void check_isnan() {
   check_no_fp_exception();
 }
 
-TEST(float_test, isnan) {
-  check_isnan<double>();
-#if FMT_USE_FLOAT128
-  check_isnan<fmt::detail::float128>();
-#endif
-}
+// TEST(float_test, isnan) {
+//   check_isnan<double>();
+// #if FMT_USE_FLOAT128
+//   check_isnan<fmt::detail::float128>();
+// #endif
+// }
 
 struct uint32_pair {
   uint32_t u[2];