diff --git a/include/fmt/format.h b/include/fmt/format.h
index e0c128b9..e6c649d2 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -3511,18 +3511,16 @@ FMT_END_NAMESPACE
 
 #define FMT_STRING_IMPL(s, ...)                                         \
   [] {                                                                  \
-    struct str : fmt::compile_string {                                  \
+    /* Use a macro-like name to avoid shadowing warnings. */            \
+    struct FMT_STRING : fmt::compile_string {                           \
       using char_type = typename std::remove_cv<std::remove_pointer<    \
           typename std::decay<decltype(s)>::type>::type>::type;         \
       __VA_ARGS__ FMT_CONSTEXPR                                         \
       operator fmt::basic_string_view<char_type>() const {              \
         return {s, sizeof(s) / sizeof(char_type) - 1};                  \
       }                                                                 \
-    } result;                                                           \
-    /* Suppress Qt Creator warning about unused operator. */            \
-    (void)static_cast<fmt::basic_string_view<typename str::char_type>>( \
-        result);                                                        \
-    return result;                                                      \
+    };                                                                  \
+    return FMT_STRING();                                                \
   }()
 
 /**