diff --git a/include/fmt/printf.h b/include/fmt/printf.h
index 7d49af45..8be33b99 100644
--- a/include/fmt/printf.h
+++ b/include/fmt/printf.h
@@ -235,7 +235,7 @@ class printf_arg_formatter : public internal::arg_formatter_base<Range> {
   printf_arg_formatter(iterator iter, format_specs& specs, context_type& ctx)
       : base(Range(iter), &specs, internal::locale_ref()), context_(ctx) {}
 
-  template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
+  template <typename T, FMT_ENABLE_IF(fmt::internal::is_integral<T>::value)>
   iterator operator()(T value) {
     // MSVC2013 fails to compile separate overloads for bool and char_type so
     // use std::is_same instead.