diff --git a/docs/getting_started/obtain.rst b/docs/getting_started/obtain.rst
index cffab2d..68b4072 100644
--- a/docs/getting_started/obtain.rst
+++ b/docs/getting_started/obtain.rst
@@ -5,7 +5,9 @@
 
 ::
 
-    git clone https://git.trustedfirmware.org/TF-A/tf-a-tests.git
+    git clone --recursive https://git.trustedfirmware.org/TF-A/tf-a-tests.git
+
+Note that TF-A-Tests will also fetch the MbedTLS repo as a git submodule.
 
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