1 files changed, 6 insertions, 2 deletions
diff --git a/clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp b/clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp
index 7aba5242962..d41175e27d2 100644
--- a/clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp
+++ b/clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp
@@ -208,8 +208,12 @@ computeInsertions(const CXXConstructorDecl::init_const_range &Inits,
 void getInitializationsInOrder(const CXXRecordDecl *ClassDecl,
                                SmallVectorImpl<const NamedDecl *> &Decls) {
   Decls.clear();
-  for (const auto &Base : ClassDecl->bases())
-    Decls.emplace_back(getCanonicalRecordDecl(Base.getType()));
+  for (const auto &Base : ClassDecl->bases()) {
+    // Decl may be null if the base class is a template parameter.
+    if (const NamedDecl *Decl = getCanonicalRecordDecl(Base.getType())) {
+      Decls.emplace_back(Decl);
+    }
+  }
   Decls.append(ClassDecl->fields().begin(), ClassDecl->fields().end());
 }