diff --git a/content/secu_logicielle/td5-stackoverflow_shellcode/files/q3/Makefile b/content/secu_logicielle/td5-stackoverflow_shellcode/files/q3/Makefile
index 1507d49..be7f5de 100644
--- a/content/secu_logicielle/td5-stackoverflow_shellcode/files/q3/Makefile
+++ b/content/secu_logicielle/td5-stackoverflow_shellcode/files/q3/Makefile
@@ -40,7 +40,7 @@ gdb_anodin: build/anodin configure
 PHONY: gdb_exploit
 gdb_exploit: build/exploit build/anodin configure
 ifeq ($(A_ADDR),)
-	$(error A_ADDR must be defined, launch setarch -R gdb ./build/anodin to retriece it)
+	$(error A_ADDR must be defined, launch make gdb_anodin then run)
 endif
 	echo '$(A_ADDR)' | ./$(BUILD_DIR)/exploit > hack.txt
 	PYTHONPATH=${PWD}/pframe${PYTHONPATH:+:${PYTHONPATH}} \