diff --git a/unittests/Format/FormatTest.cpp b/unittests/Format/FormatTest.cpp
index 98e6d47..4c948e8 100644
--- a/unittests/Format/FormatTest.cpp
+++ b/unittests/Format/FormatTest.cpp
@@ -2763,6 +2763,7 @@
                "#include \"string.h\"\n"
                "#include <a-a>\n"
                "#include < path with space >\n"
+               "#include \"abc.h\" // this is included for ABC\n"
                "#include \"some very long include paaaaaaaaaaaaaaaaaaaaaaath\"",
                getLLVMStyleWithColumns(35));