diff --git a/folly/json/test/DynamicParserTest.cpp b/folly/json/test/DynamicParserTest.cpp
index b50720f2529..3dcf035d242 100644
--- a/folly/json/test/DynamicParserTest.cpp
+++ b/folly/json/test/DynamicParserTest.cpp
@@ -273,7 +273,7 @@ TEST(TestDynamicParser, TestRequiredOptionalParseErrors) {
   };
   // clang-format off
   EXPECT_EQ(dynamic(dynamic::object("nested", dynamic::object
-    ("x", get_expected_error_fn("x", "TypeError: .* but had type `array'"))
+    ("x", get_expected_error_fn("x", "TypeError: .* but had type 'array'"))
     ("y", get_expected_error_fn("y", ".*Invalid leading character.*"))
     ("z", get_expected_error_fn("z", "CUSTOM")))), errors);
   // clang-format on
@@ -311,7 +311,7 @@ TEST(TestDynamicParser, TestItemParseErrors) {
       },
       "string",
       "string",
-      "TypeError: .* but had type `array'");
+      "TypeError: .* but had type 'array'");
   checkItemParseError(
       dynamic::array("this is not a bool"),
       [&](DynamicParser& p) { p.arrayItems([&](int64_t, bool) {}); },