diff --git a/test/chrono-test.cc b/test/chrono-test.cc
index bb546f7b4809..76d93fbf3f16 100644
--- a/test/chrono-test.cc
+++ b/test/chrono-test.cc
@@ -301,4 +301,8 @@ TEST(ChronoTest, InvalidWidthId) {
                fmt::format_error);
 }
 
+TEST(ChronoTest, InvalidColons) {
+  EXPECT_THROW(fmt::format("{0}=:{0::", std::chrono::seconds(0)),
+               fmt::format_error);
+}
 #endif  // FMT_STATIC_THOUSANDS_SEPARATOR