--- pdumpfs-1.3/tests/pdumpfs-test~	2004-08-10 07:54:28.000000000 +0100
+++ pdumpfs-1.3/tests/pdumpfs-test	2016-09-04 23:15:36.341712592 +0100
@@ -17,6 +17,8 @@
 
 ../pdumpfs src dest > tmp.log || exit 1
 diff -r src dest/$today/src || exit 1
+# $today and $yesterday may not be in the same month so create parent directory
+mkdir -p $(dirname dest/$yesterday)
 mv dest/$today dest/$yesterday
 
 echo update > src/foo