diff --git a/Makefile b/Makefile
index f2c9b9e2..fd33d9bd 100644
--- a/Makefile
+++ b/Makefile
@@ -618,6 +618,7 @@ built/wasm32/miniperl: build/wasm32/perl/Makefile | install/binfmt_misc/elf32-wa
 	touch $@
 
 built/wasm32/perl: built/wasm32/miniperl build/wasm32/perl/Makefile | install/binfmt_misc/elf32-wasm32
+	(cd build/wasm32/perl; find -type d | while read; do touch $$REPLY/.dir; done)
 	PATH=$(PWD)/wasm32-unknown-none/bin:$$PATH $(MAKE) -C build/wasm32/perl
 	cp build/wasm32/perl/perl wasm32-unknown-none/wasm32-unknown-none/bin/miniperl
 	touch $@