diff --git a/test/format-test.cc b/test/format-test.cc
index 7d7cb534..7bcef5e2 100644
--- a/test/format-test.cc
+++ b/test/format-test.cc
@@ -1696,8 +1696,13 @@ TEST(format_test, format_custom) {
 
 TEST(format_test, format_to_custom) {
   char buf[10] = {};
+#if FMT_OUTPUT_RANGES
   auto result_range = fmt::format_to(buf, "{}", Answer());
   EXPECT_EQ(result_range.begin(), buf + 2);
+#else
+  auto end = fmt::format_to(buf, "{}", Answer());
+  EXPECT_EQ(end, buf + 2);
+#endif
   EXPECT_STREQ(buf, "42");
 }
 
diff --git a/test/ranges-test.cc b/test/ranges-test.cc
index 0ceef775..9cf83f1a 100644
--- a/test/ranges-test.cc
+++ b/test/ranges-test.cc
@@ -205,8 +205,13 @@ TEST(ranges_test, format_struct) {
 
 TEST(ranges_test, format_to) {
   char buf[10];
+#if FMT_OUTPUT_RANGES
   auto result_range = fmt::format_to(buf, "{}", std::vector<int>{1, 2, 3});
   *result_range.begin() = '\0';
+#else
+  auto end = fmt::format_to(buf, "{}", std::vector<int>{1, 2, 3});
+  *end = '\0';
+#endif
   EXPECT_STREQ(buf, "[1, 2, 3]");
 }