diff --git a/clang/include/clang/AST/TemplateBase.h b/clang/include/clang/AST/TemplateBase.h
index b7af5c7d7bd965..c158cde3580e01 100644
--- a/clang/include/clang/AST/TemplateBase.h
+++ b/clang/include/clang/AST/TemplateBase.h
@@ -421,7 +421,7 @@ struct TemplateArgumentLocInfo {
   }
 
 public:
-  constexpr TemplateArgumentLocInfo() {}
+  TemplateArgumentLocInfo() {}
   TemplateArgumentLocInfo(TypeSourceInfo *Declarator) { Pointer = Declarator; }
 
   TemplateArgumentLocInfo(Expr *E) { Pointer = E; }
@@ -459,7 +459,7 @@ class TemplateArgumentLoc {
   TemplateArgumentLocInfo LocInfo;
 
 public:
-  constexpr TemplateArgumentLoc() {}
+  TemplateArgumentLoc() {}
 
   TemplateArgumentLoc(const TemplateArgument &Argument,
                       TemplateArgumentLocInfo Opaque)