diff --git a/world/grub/Makefile b/world/grub/Makefile
index 7950546..38d1139 100644
--- a/world/grub/Makefile
+++ b/world/grub/Makefile
@@ -10,6 +10,9 @@ config_opts += --disable-efiemu
 config_opts += --disable-werror
 config_opts += --disable-device-mapper
 
-post_install = mv -v $(DESTDIR)/etc/bash_completion.d/grub $(DESTDIR)/usr/share/bash-completion/completions
+define post_install
+	mv -v $(DESTDIR)/etc/bash_completion.d/grub $(DESTDIR)/usr/share/bash-completion/completions
+	rm -rf $(DESTDIR)/etc/grub.d/30_os-prober
+endef
 
 include targets.mk