diff --git a/include/fmt/core.h b/include/fmt/core.h
index 0a72a7e9..e1d02287 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -336,7 +336,7 @@ struct monostate {
 // `(void)var` method does not work on many intel compilers.  This is
 // from Herb Sutter, "Shutting up compiler warnings",
 // https://herbsutter.com/2009/10/18/mailbag-shutting-up-compiler-warnings/
-template<class T> void ignore_unused( const T& ) { }
+template <class T> void ignore_unused(const T&) {}
 
 // An enable_if helper to be used in template parameters which results in much
 // shorter symbols: https://godbolt.org/z/sWw4vP. Extra parentheses are needed