diff --git a/src/format.cc b/src/format.cc
index e75e1724..e67a9a84 100644
--- a/src/format.cc
+++ b/src/format.cc
@@ -55,7 +55,8 @@ vformat_to(buffer<char>&, string_view,
                type_identity_t<char>>>);
 }  // namespace detail
 
-// Clang doesn't allow dllexport on template instantiation definitions (LLVM D61118)
+// Clang doesn't allow dllexport on template instantiation definitions (LLVM
+// D61118).
 template struct detail::basic_data<void>;
 
 // Workaround a bug in MSVC2013 that prevents instantiation of format_float.