diff --git a/include/fmt/core.h b/include/fmt/core.h
index ec7a946c..ad2511e9 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -311,8 +311,12 @@ struct int128_t {};
 struct uint128_t {};
 #endif
 
-#if !defined(FMT_USE_SMALLEST_INT)
-#define FMT_USE_SMALLEST_INT 1
+// Defining FMT_REDUCE_INT_INSTANTIATIONS to 1, will reduce the number of
+// int_writer template instances to just one by only using the largest integer
+// type. This results in a reduction in binary size but will cause a decrease in
+// integer formatting performance.
+#if !defined(FMT_REDUCE_INT_INSTANTIATIONS)
+#  define FMT_REDUCE_INT_INSTANTIATIONS 0
 #endif
 
 // Casts a nonnegative integer to unsigned.
diff --git a/include/fmt/format.h b/include/fmt/format.h
index 81ce7b96..ff233b7d 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -726,18 +726,18 @@ FMT_CONSTEXPR bool is_supported_floating_point(T) {
          (std::is_same<T, long double>::value && FMT_USE_LONG_DOUBLE);
 }
 
-#if FMT_USE_SMALLEST_INT
+#if FMT_REDUCE_INT_INSTANTIATIONS
+// Pick the largest integer container to represent all values of T.
+template <typename T>
+using uint32_or_64_or_128_t =
+    conditional_t<sizeof(uint128_t) < sizeof(uint64_t), uint64_t, uint128_t>;
+#else
 // Smallest of uint32_t, uint64_t, uint128_t that is large enough to
 // represent all values of T.
 template <typename T>
 using uint32_or_64_or_128_t = conditional_t<
     std::numeric_limits<T>::digits <= 32, uint32_t,
     conditional_t<std::numeric_limits<T>::digits <= 64, uint64_t, uint128_t>>;
-#else
-// Pick the largest integer container to represent represent all values of T.
-template <typename T>
-using uint32_or_64_or_128_t =
-    conditional_t<sizeof(uint128_t) < sizeof(uint64_t), uint64_t, uint128_t>;
 #endif
 
 // Static data is placed in this class template for the header-only config.