diff --git a/Makefile b/Makefile
index 451319b08..65b72d4e1 100644
--- a/Makefile
+++ b/Makefile
@@ -25,6 +25,9 @@ test-release: build-release
 all-release: build-release
 
 clean:
+	@echo "WARNING: Back-up your wallet if it exists within ./build!" ; \
+        read -r -p "This will destroy the build directory, continue (y/N)?: " CONTINUE; \
+	[ $$CONTINUE = "y" ] || [ $$CONTINUE = "Y" ] || (echo "Exiting."; exit 1;)
 	rm -rf build
 
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