diff --git a/doc/api.md b/doc/api.md
index 5b102771..e86f0b06 100644
--- a/doc/api.md
+++ b/doc/api.md
@@ -551,12 +551,12 @@ This is a known limitation of "perfect" forwarding in C++.
 <a id="compile-api"></a>
 ## Format String Compilation
 
-`fmt/compile.h` provides format string compilation enabled via the
-`FMT_COMPILE` macro or the `_cf` user-defined literal defined in
-namespace `fmt::literals`. Format strings marked with `FMT_COMPILE`
-or `_cf` are parsed, checked and converted into efficient formatting
-code at compile-time. This supports arguments of built-in and string
-types as well as user-defined types with `format` functions taking
+`fmt/compile.h` provides format string compilation and compile-time
+(`constexpr`) formatting enabled via the `FMT_COMPILE` macro or the `_cf`
+user-defined literal defined in namespace `fmt::literals`. Format strings
+marked with `FMT_COMPILE` or `_cf` are parsed, checked and converted into
+efficient formatting code at compile-time. This supports arguments of built-in
+and string types as well as user-defined types with `format` functions taking
 the format context type as a template parameter in their `formatter`
 specializations. For example: