diff --git a/clang-tools-extra/pseudo/lib/cxx.bnf b/clang-tools-extra/pseudo/lib/cxx.bnf
index f0d666d5b54e2..707844d882391 100644
--- a/clang-tools-extra/pseudo/lib/cxx.bnf
+++ b/clang-tools-extra/pseudo/lib/cxx.bnf
@@ -645,7 +645,7 @@ constraint-logical-and-expression := primary-expression
 constraint-logical-and-expression := constraint-logical-and-expression && primary-expression
 template-parameter := type-parameter
 template-parameter := parameter-declaration
-type-parameter := type-parameter-key ..._opt IDENTIFIER
+type-parameter := type-parameter-key ..._opt IDENTIFIER_opt
 type-parameter := type-parameter-key IDENTIFIER_opt = type-id
 type-parameter := type-constraint ..._opt IDENTIFIER_opt
 type-parameter := type-constraint IDENTIFIER_opt = type-id
diff --git a/clang-tools-extra/pseudo/test/cxx/template-empty-type-parameter.cpp b/clang-tools-extra/pseudo/test/cxx/template-empty-type-parameter.cpp
new file mode 100644
index 0000000000000..e8f48c64d79f3
--- /dev/null
+++ b/clang-tools-extra/pseudo/test/cxx/template-empty-type-parameter.cpp
@@ -0,0 +1,3 @@
+// RUN: clang-pseudo -grammar=%cxx-bnf-file -source=%s --print-forest | FileCheck %s
+template <typename> struct MatchParents;
+// CHECK: template-parameter-list~TYPENAME := tok[2]