18f7ca577a41807f0c99fc9d00e1572d96d7c6cb

 1diff --git a/plugins/dirhistory/dirhistory.plugin.zsh b/plugins/dirhistory/dirhistory.plugin.zsh
 2index 05839e35a6652627c48ea3bf13f14495be0d1d5f..6867086cadbe60a2744ec487ca78857f38b7a00d 100644
 3--- a/plugins/dirhistory/dirhistory.plugin.zsh
 4+++ b/plugins/dirhistory/dirhistory.plugin.zsh
 5@@ -144,12 +144,12 @@ bindkey "\eO3C" dirhistory_zle_dirhistory_future
 6 
 7 # Move up in hierarchy
 8 function dirhistory_up() {
 9-  cd ..
10+  cd .. || return 1
11 }
12 
13 # Move down in hierarchy
14 function dirhistory_down() {
15-  cd "`find . -mindepth 1 -maxdepth 1 -type d | sort -n | head -n 1`"
16+  cd "$(find . -mindepth 1 -maxdepth 1 -type d | sort -n | head -n 1)" || return 1
17 }
18 
19