diff --git a/Makefile b/Makefile
index 5c80aedb..313f4bb3 100644
--- a/Makefile
+++ b/Makefile
@@ -738,6 +738,7 @@ artifact-push!:
 %.{dejanew}!: js/wasm32.js install/texinfo-bison-flex install/gcc-dependencies install/dejagnu | extracted/artifacts/toolchain.tar tools/bin/wasmrewrite tools/bin/wasmsect install/binfmt_misc/wasm install/binfmt_misc/elf32-wasm32 artifacts/libc.wasm artifacts/ld.wasm artifacts/libm.wasm subrepos/gcc/checkout! artifacts src/gcc
 	$(MAKE) artifacts/jsshell-linux-x86_64.zip
 	unzip artifacts/jsshell-linux-x86_64.zip -d bin
+	mkdir wasm
 	cp artifacts/*.wasm wasm
 	$(MAKE) artifact-timestamp
 	$(MAKE) build/wasm32/gcc-testsuite/$*.{dejagnu}.tar