diff --git a/office/.config/sh/alias.d/taskwarrior.sh b/office/.config/sh/alias.d/taskwarrior.sh
index c69b7ac..dc70002 100644
--- a/office/.config/sh/alias.d/taskwarrior.sh
+++ b/office/.config/sh/alias.d/taskwarrior.sh
@@ -14,7 +14,9 @@ t() {
 # copy the `task` zsh completions over to my little alias 😉
 # FIXME: this is not very pretty and not super portable (needs ps) but
 # works for now. from here: https://unix.stackexchange.com/a/72564/414758
-if exist task && [ "$(ps -p $$ -o comm --no-headers)" = "zsh" ]; then compdef t=task; fi
+if echo "$SHELL" | grep -q zsh; then
+    if exist task && [ "$(ps -p $$ -o comm --no-headers)" = "zsh" ]; then compdef t=task; fi
+fi
 
 alias ta="task add"
 alias tal="task log"
@@ -29,8 +31,8 @@ if exist timew; then
 else
     alias tra="task active"
 fi
-alias tdd="task end.after:today all" # done doday
-alias tdy="task end.after:yesterday all" # done yesterday-today
+alias tdd="task end.after:today all"           # done doday
+alias tdy="task end.after:yesterday all"       # done yesterday-today
 alias tdw="task end.after:today-1wk completed" # done this week
 
 alias tad="task +ACTIVE done"