diff --git a/writing/zk/config/sh/env.d/zk.sh b/writing/zk/config/sh/env.d/zk.sh
index eb9ca6f..83c2c26 100644
--- a/writing/zk/config/sh/env.d/zk.sh
+++ b/writing/zk/config/sh/env.d/zk.sh
@@ -1,4 +1,4 @@
 #!/usr/bin/env sh
 #
 
-export ZK_NOTEBOOK_DIR="${WIKIROOT:-~/documents/notes/}"
+export ZK_NOTEBOOK_DIR="${WIKIROOT:-$HOME/documents/notes/}"