diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
index 5bdfa14884d1..6fbc810ca555 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -540,7 +540,7 @@ static void InitializeCPlusPlusFeatureTestMacros(const LangOptions &LangOpts,
     Builder.defineMacro("__cpp_noexcept_function_type", "201510");
     Builder.defineMacro("__cpp_capture_star_this", "201603");
     Builder.defineMacro("__cpp_if_constexpr", "201606");
-    Builder.defineMacro("__cpp_deduction_guides", "201611");
+    Builder.defineMacro("__cpp_deduction_guides", "201703");
     Builder.defineMacro("__cpp_template_auto", "201606");
     Builder.defineMacro("__cpp_namespace_attributes", "201411");
     Builder.defineMacro("__cpp_enumerator_attributes", "201411");
diff --git a/clang/test/Lexer/cxx-features.cpp b/clang/test/Lexer/cxx-features.cpp
index 352f08e73b32..a0058511eb19 100644
--- a/clang/test/Lexer/cxx-features.cpp
+++ b/clang/test/Lexer/cxx-features.cpp
@@ -57,7 +57,7 @@
 
 // static_assert checked below
 
-#if check(deduction_guides, 0, 0, 0, 201611)
+#if check(deduction_guides, 0, 0, 0, 201703)
 #error "wrong value for __cpp_deduction_guides"
 #endif