Index: clang-tools-extra/clang-tidy/modernize/UseDefaultMemberInitCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/modernize/UseDefaultMemberInitCheck.cpp
+++ clang-tools-extra/clang-tidy/modernize/UseDefaultMemberInitCheck.cpp
@@ -246,8 +246,12 @@
   // Check whether we have multiple hand-written constructors and bomb out, as
   // it is hard to reconcile their sets of member initializers.
   const auto *ClassDecl = cast<CXXRecordDecl>(Field->getParent());
-  if (llvm::count_if(ClassDecl->ctors(), [](const CXXConstructorDecl *Ctor) {
-        return !Ctor->isCopyOrMoveConstructor();
+  if (llvm::count_if(ClassDecl->decls(), [](const Decl *D) {
+        if (const auto *Ctor = dyn_cast<CXXConstructorDecl>(D))
+          return !Ctor->isCopyOrMoveConstructor();
+        if (const auto *FTD = dyn_cast<FunctionTemplateDecl>(D))
+          return isa<CXXConstructorDecl>(FTD->getTemplatedDecl());
+        return false;
       }) > 1)
     return;
 
Index: clang-tools-extra/test/clang-tidy/checkers/modernize/use-default-member-init.cpp
===================================================================
--- clang-tools-extra/test/clang-tidy/checkers/modernize/use-default-member-init.cpp
+++ clang-tools-extra/test/clang-tidy/checkers/modernize/use-default-member-init.cpp
@@ -60,6 +60,20 @@
     int i;
 };
 
+struct TwoConstructorsTpl {
+  TwoConstructorsTpl() : i{7} {}
+  template <typename T> TwoConstructorsTpl(T, int) : i(8) {}
+  int i;
+};
+
+struct PositiveConstructorTpl {
+  template <typename T> PositiveConstructorTpl(T, int) : i(8) {}
+  // CHECK-FIXES: PositiveConstructorTpl(T, int)  {}
+  int i;
+  // CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use default member initializer for 'i'
+  // CHECK-FIXES: int i{8};
+};
+
 struct PositiveNotDefaultOOLInt {
   PositiveNotDefaultOOLInt(int);
   int i;
@@ -237,6 +251,14 @@
 NegativeTemplate<int> nti;
 NegativeTemplate<double> ntd;
 
+template <typename T> struct PositiveTemplate {
+  PositiveTemplate() : i(9) {}
+  // CHECK-FIXES: PositiveTemplate()  {}
+  int i;
+  // CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use default member initializer for 'i'
+  // CHECK-FIXES: int i{9};
+};
+
 struct NegativeDefaultMember {
   NegativeDefaultMember() {}
   int i = 2;