diff --git a/include/fmt/base.h b/include/fmt/base.h
index e5773c87..261b849c 100644
--- a/include/fmt/base.h
+++ b/include/fmt/base.h
@@ -843,7 +843,7 @@ class basic_specs {
       fill_data_[i & 3] = static_cast<char>(s[i]);
   }
 
-  FMT_CONSTEXPR void set_fill(const basic_specs& specs) {
+  FMT_CONSTEXPR void copy_fill_from(const basic_specs& specs) {
     set_fill_size(specs.fill_size());
     for (size_t i = 0; i < max_fill_size; ++i)
       fill_data_[i] = specs.fill_data_[i];
diff --git a/include/fmt/format.h b/include/fmt/format.h
index 95b5bad0..92a1d5b7 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -3968,7 +3968,7 @@ template <typename T, typename Char = char> struct nested_formatter {
     write(basic_appender<Char>(buf));
     auto specs = format_specs();
     specs.width = width_;
-    specs.set_fill(specs_);
+    specs.copy_fill_from(specs_);
     specs.set_align(specs_.align());
     return detail::write<Char>(
         ctx.out(), basic_string_view<Char>(buf.data(), buf.size()), specs);
diff --git a/include/fmt/std.h b/include/fmt/std.h
index bb07fedc..54eb2c2a 100644
--- a/include/fmt/std.h
+++ b/include/fmt/std.h
@@ -696,7 +696,7 @@ template <typename T, typename Char> struct formatter<std::complex<T>, Char> {
 
     auto outer_specs = format_specs();
     outer_specs.width = specs.width;
-    outer_specs.set_fill(specs);
+    outer_specs.copy_fill_from(specs);
     outer_specs.set_align(specs.align());
 
     specs.width = 0;