diff --git a/CHANGELOG.md b/CHANGELOG.md
index 846e246..2e3cdf7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - manpages: moved to `man/man1/*.1`.
 
+### Fixed
+
+- Rename `_z` completion function to avoid conflicts with other shell plugins.
+
 ## [0.8.0] - 2021-12-25
 
 ### Added
diff --git a/README.md b/README.md
index 38ec3ff..fec0485 100644
--- a/README.md
+++ b/README.md
@@ -241,7 +241,7 @@ eval "$(zoxide init zsh)"
 ```
 
 For completions to work, the above line must be added _after_ `compinit` is
-called.
+called. You may have to rebuild your cache by running `rm ~/.zcompdump*; compinit`.
 
 </details>
 
diff --git a/templates/bash.txt b/templates/bash.txt
index 3ec424a..8aff54f 100644
--- a/templates/bash.txt
+++ b/templates/bash.txt
@@ -123,7 +123,7 @@ if [[ ${BASH_VERSINFO:-0} -ge 4 && :"${SHELLOPTS}": =~ :(vi|emacs): && ${TERM} !
     # Use `printf '\e[5n'` to redraw line after fzf closes.
     \builtin bind '"\e[0n": redraw-current-line' &>/dev/null
 
-    function _{{cmd}}() {
+    function __zoxide_z_complete() {
         # Only show completions when the cursor is at the end of the line.
         [[ {{ "${#COMP_WORDS[@]}" }} -eq $((COMP_CWORD + 1)) ]] || return
 
@@ -140,7 +140,7 @@ if [[ ${BASH_VERSINFO:-0} -ge 4 && :"${SHELLOPTS}": =~ :(vi|emacs): && ${TERM} !
         fi
     }
 
-    \builtin complete -F _{{cmd}} -o nospace -- {{cmd}}
+    \builtin complete -F __zoxide_z_complete -o nospace -- {{cmd}}
 fi
 
 {%- when None %}
diff --git a/templates/zsh.txt b/templates/zsh.txt
index 16a5069..6f01d24 100644
--- a/templates/zsh.txt
+++ b/templates/zsh.txt
@@ -109,8 +109,8 @@ function {{cmd}}i() {
 }
 
 if [[ -o zle ]]; then
-    __zoxide_unset _{{cmd}}
-    function _{{cmd}}() {
+    __zoxide_unset __zoxide_z_complete
+    function __zoxide_z_complete() {
         # Only show completions when the cursor is at the end of the line.
         # shellcheck disable=SC2154
         [[ "{{ "${#words[@]}" }}" -eq "${CURRENT}" ]] || return
@@ -129,19 +129,19 @@ if [[ -o zle ]]; then
         fi
     }
 
-    __zoxide_unset _{{cmd}}_helper
-    function _{{cmd}}_helper() {
+    __zoxide_unset __zoxide_z_complete_helper
+    function __zoxide_z_complete_helper() {
         \builtin local result="${__zoxide_z_prefix}${__zoxide_result}"
         # shellcheck disable=SC2296
         [[ -n "${__zoxide_result}" ]] && LBUFFER="${LBUFFER}${(q-)result}"
         \builtin zle reset-prompt
     }
 
-    \builtin zle -N _{{cmd}}_helper
-    \builtin bindkey "\e[0n" _{{cmd}}_helper
+    \builtin zle -N __zoxide_z_complete_helper
+    \builtin bindkey "\e[0n" __zoxide_z_complete_helper
     if [[ "${+functions[compdef]}" -ne 0 ]]; then
         \compdef -d {{cmd}}
-        \compdef _{{cmd}} {{cmd}}
+        \compdef __zoxide_z_complete {{cmd}}
     fi
 fi