diff --git a/clang/lib/ASTMatchers/ASTMatchersInternal.cpp b/clang/lib/ASTMatchers/ASTMatchersInternal.cpp
index 4ee32fbe94b1..1ec0d88e3188 100644
--- a/clang/lib/ASTMatchers/ASTMatchersInternal.cpp
+++ b/clang/lib/ASTMatchers/ASTMatchersInternal.cpp
@@ -603,6 +603,8 @@ const internal::VariadicDynCastAllOfMatcher<Decl, EnumConstantDecl>
 const internal::VariadicDynCastAllOfMatcher<Decl, CXXMethodDecl> cxxMethodDecl;
 const internal::VariadicDynCastAllOfMatcher<Decl, CXXConversionDecl>
     cxxConversionDecl;
+const internal::VariadicDynCastAllOfMatcher<Decl, CXXDeductionGuideDecl>
+    cxxDeductionGuideDecl;
 const internal::VariadicDynCastAllOfMatcher<Decl, VarDecl> varDecl;
 const internal::VariadicDynCastAllOfMatcher<Decl, FieldDecl> fieldDecl;
 const internal::VariadicDynCastAllOfMatcher<Decl, IndirectFieldDecl>