diff --git a/docs/getting_started/prerequisites.rst b/docs/getting_started/prerequisites.rst
index 62ef826..7eabfa3 100644
--- a/docs/getting_started/prerequisites.rst
+++ b/docs/getting_started/prerequisites.rst
@@ -27,6 +27,10 @@
 target the Armv7-A or Armv8-A architectures:
 
 - GCC >= 11.3.Rel1 (from the `Arm Developer website`_)
+
+   You will need the targets ``arm-none-eabi`` and ``aarch64-none-elf`` for
+   AArch32 and AArch64 builds respectively.
+
 - Clang >= 14.0.0
 - Arm Compiler >= 6.18