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--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 # FRET
 ## Structure
+* `git submodule update --init`
 * LibAFL-based fuzzer under `LibAFL/fuzzers/FRET`
 * FreeRTOS demos under `FreeRTOS/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC`
 * QEMU instrumentation under `qemu-libafl-bridge`