diff --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
index 46de4a1..2310e99 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -657,9 +657,10 @@
                                              ArrayRef<BindingDecl*> *Bindings) {
 
   // Do substitution on the type of the declaration
-  TypeSourceInfo *DI = SemaRef.SubstType(
-      D->getTypeSourceInfo(), TemplateArgs, D->getTypeSpecStartLoc(),
-      D->getDeclName(), /*AllowDeducedTST*/true);
+  TypeSourceInfo *DI = SemaRef.SubstType(D->getTypeSourceInfo(),
+                                         TemplateArgs,
+                                         D->getTypeSpecStartLoc(),
+                                         D->getDeclName());
   if (!DI)
     return nullptr;