diff --git a/.gitmodules b/.gitmodules
index b21d3cf3f5..c010ac6ee7 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -16,3 +16,6 @@
 [submodule "FreeRTOS-Plus/Source/coreJSON"]
 	path = FreeRTOS-Plus/Source/coreJSON
 	url = https://github.com/FreeRTOS/coreJSON
+[submodule "FreeRTOS-Plus/Test/CMock"]
+	path = FreeRTOS-Plus/Test/CMock
+	url = https://github.com/ThrowTheSwitch/CMock
diff --git a/FreeRTOS-Plus/Test/CMock b/FreeRTOS-Plus/Test/CMock
new file mode 160000
index 0000000000..afa294982e
--- /dev/null
+++ b/FreeRTOS-Plus/Test/CMock
@@ -0,0 +1 @@
+Subproject commit afa294982e8a28bc06f341cc77fd4276641b42bd