diff --git a/tests/operations/tests/Bombe.mjs b/tests/operations/tests/Bombe.mjs
index b44e032c8..5f747c6a3 100644
--- a/tests/operations/tests/Bombe.mjs
+++ b/tests/operations/tests/Bombe.mjs
@@ -4,7 +4,7 @@
  * @copyright Crown Copyright 2019
  * @license Apache-2.0
  */
-import TestRegister from "../TestRegister";
+import TestRegister from "../../lib/TestRegister";
 
 TestRegister.addTests([
     {
diff --git a/tests/operations/tests/Enigma.mjs b/tests/operations/tests/Enigma.mjs
index 5a3a8002f..49ba6ba67 100644
--- a/tests/operations/tests/Enigma.mjs
+++ b/tests/operations/tests/Enigma.mjs
@@ -4,7 +4,7 @@
  * @copyright Crown Copyright 2019
  * @license Apache-2.0
  */
-import TestRegister from "../TestRegister";
+import TestRegister from "../../lib/TestRegister";
 
 TestRegister.addTests([
     {
diff --git a/tests/operations/tests/MultipleBombe.mjs b/tests/operations/tests/MultipleBombe.mjs
index 32d2db08e..64d8dd5e7 100644
--- a/tests/operations/tests/MultipleBombe.mjs
+++ b/tests/operations/tests/MultipleBombe.mjs
@@ -4,7 +4,7 @@
  * @copyright Crown Copyright 2019
  * @license Apache-2.0
  */
-import TestRegister from "../TestRegister";
+import TestRegister from "../../lib/TestRegister";
 
 TestRegister.addTests([
     {
diff --git a/tests/operations/tests/Typex.mjs b/tests/operations/tests/Typex.mjs
index e3751e8a3..b722662a8 100644
--- a/tests/operations/tests/Typex.mjs
+++ b/tests/operations/tests/Typex.mjs
@@ -4,7 +4,7 @@
  * @copyright Crown Copyright 2019
  * @license Apache-2.0
  */
-import TestRegister from "../TestRegister";
+import TestRegister from "../../lib/TestRegister";
 
 TestRegister.addTests([
     {