diff --git a/Makefile b/Makefile
index 19bc50449..63467fe4b 100644
--- a/Makefile
+++ b/Makefile
@@ -33,7 +33,7 @@ BUILDDIR      := $(BASEDIR)/target/${PROFILE}/
 PKG_BUILDDIR  := $(BUILDDIR)/deps/
 
 BUSYBOX_ROOT := $(BASEDIR)/tmp/
-BUSYBOX_VER := 1.24.1
+BUSYBOX_VER := 1.22.0
 BUSYBOX_SRC:=$(BUSYBOX_ROOT)/busybox-$(BUSYBOX_VER)/
 
 # Possible programs
diff --git a/tests/common/util.rs b/tests/common/util.rs
index 0340329ae..540cf5b5f 100755
--- a/tests/common/util.rs
+++ b/tests/common/util.rs
@@ -246,7 +246,7 @@ impl AtPath {
 
     pub fn append(&self, name: &str, contents: &str) {
         log_info("open(append)", self.plus_as_string(name));
-        let mut f = OpenOptions::new().append(true).open(self.plus(name)).unwrap();
+        let mut f = OpenOptions::new().write(true).append(true).open(self.plus(name)).unwrap();
         let _ = f.write(contents.as_bytes());
     }