diff --git a/CHANGELOG.md b/CHANGELOG.md
index 78a70ef5..abf642bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@ Version 231:
 
 * Doc section names are stable
 * Add missing include
+* Constrain to_static_string to integers
 
 --------------------------------------------------------------------------------
 
diff --git a/include/boost/beast/core/impl/static_string.hpp b/include/boost/beast/core/impl/static_string.hpp
index 3fcfce83..c668b837 100644
--- a/include/boost/beast/core/impl/static_string.hpp
+++ b/include/boost/beast/core/impl/static_string.hpp
@@ -617,7 +617,7 @@ to_static_string(Integer x, std::false_type)
 
 } // detail
 
-template<class Integer>
+template<class Integer, class>
 static_string<detail::max_digits(sizeof(Integer))>
 to_static_string(Integer x)
 {
diff --git a/include/boost/beast/core/static_string.hpp b/include/boost/beast/core/static_string.hpp
index 9227fa15..fc60a72e 100644
--- a/include/boost/beast/core/static_string.hpp
+++ b/include/boost/beast/core/static_string.hpp
@@ -1097,7 +1097,13 @@ operator<<(std::basic_ostream<CharT, Traits>& os,
     maximum size large enough to hold the longest possible decimal
     representation of any integer of the given type.
 */
-template<class Integer>
+template<
+    class Integer
+#ifndef BOOST_BEAST_DOXYGEN
+    ,class = typename std::enable_if<
+        std::is_integral<Integer>::value>::type
+#endif
+>
 static_string<detail::max_digits(sizeof(Integer))>
 to_static_string(Integer x);