diff --git a/unittests/Format/FormatTest.cpp b/unittests/Format/FormatTest.cpp
index 2ba6969..a64a5bc 100644
--- a/unittests/Format/FormatTest.cpp
+++ b/unittests/Format/FormatTest.cpp
@@ -1691,6 +1691,10 @@
                "      aaaaa(aaaaaa),\n"
                "      aaaaa(aaaaaa) {}",
                OnePerLine);
+  verifyFormat("Constructor()\n"
+               "    : aaaaa(aaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaa,\n"
+               "            aaaaaaaaaaaaaaaaaaaaaa) {}",
+               OnePerLine);
 
   // This test takes VERY long when memoization is broken.
   OnePerLine.BinPackParameters = false;