diff --git a/tests/baselines/reference/nounusedTypeParameterConstraint.errors.txt b/tests/baselines/reference/nounusedTypeParameterConstraint.errors.txt
new file mode 100644
index 00000000000..a5797b44d92
--- /dev/null
+++ b/tests/baselines/reference/nounusedTypeParameterConstraint.errors.txt
@@ -0,0 +1,12 @@
+tests/cases/compiler/test.ts(1,10): error TS6133: 'IEventSourcedEntity' is declared but never used.
+
+
+==== tests/cases/compiler/bar.ts (0 errors) ====
+    
+    export interface IEventSourcedEntity { }
+    
+==== tests/cases/compiler/test.ts (1 errors) ====
+    import { IEventSourcedEntity } from "./bar";
+             ~~~~~~~~~~~~~~~~~~~
+!!! error TS6133: 'IEventSourcedEntity' is declared but never used.
+    export type DomainEntityConstructor<TEntity extends IEventSourcedEntity> = { new(): TEntity; };
\ No newline at end of file
diff --git a/tests/baselines/reference/nounusedTypeParameterConstraint.js b/tests/baselines/reference/nounusedTypeParameterConstraint.js
new file mode 100644
index 00000000000..aa403187f7a
--- /dev/null
+++ b/tests/baselines/reference/nounusedTypeParameterConstraint.js
@@ -0,0 +1,14 @@
+//// [tests/cases/compiler/nounusedTypeParameterConstraint.ts] ////
+
+//// [bar.ts]
+
+export interface IEventSourcedEntity { }
+
+//// [test.ts]
+import { IEventSourcedEntity } from "./bar";
+export type DomainEntityConstructor<TEntity extends IEventSourcedEntity> = { new(): TEntity; };
+
+//// [bar.js]
+"use strict";
+//// [test.js]
+"use strict";
diff --git a/tests/cases/compiler/nounusedTypeParameterConstraint.ts b/tests/cases/compiler/nounusedTypeParameterConstraint.ts
new file mode 100644
index 00000000000..d2c3a1677ee
--- /dev/null
+++ b/tests/cases/compiler/nounusedTypeParameterConstraint.ts
@@ -0,0 +1,8 @@
+//@noUnusedLocals:true
+
+//@filename: bar.ts
+export interface IEventSourcedEntity { }
+
+//@filename: test.ts
+import { IEventSourcedEntity } from "./bar";
+export type DomainEntityConstructor<TEntity extends IEventSourcedEntity> = { new(): TEntity; };
\ No newline at end of file