diff --git a/README.md b/README.md
index 1bfdf08..26acdc5 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,7 @@ pash
     * [How do I change the password store location?](#how-do-i-change-the-password-store-location)
     * [How do I rename an entry?](#how-do-i-rename-an-entry)
     * [How can I extend `pash`?](#how-can-i-extend-pash)
+* [How do I change the clipboard tool?](#how-do-i-change-the-clipboard-tool)
 
 <!-- vim-markdown-toc -->
 
@@ -146,3 +147,12 @@ pash() {
     esac
 }
 ```
+
+## How do I change the clipboard tool?
+
+Set the environment variable `PASH_CLIP` to a command.
+
+```sh
+# Default: 'xclip -selection clipboard'.
+export PASH_DIR='xclip -selection clipboard'
+```
diff --git a/pash b/pash
index 8e79409..3b546f8 100755
--- a/pash
+++ b/pash
@@ -44,7 +44,7 @@ pw_add() {
     # Use 'gpg' to store the password in an encrypted file. The
     # 'GPG_TTY' environment variable is set to workaround cases
     # where 'gpg' cannot find an attached terminal.
-    echo "$pass" | "$gpg" "$@" -o "$name.gpg" &&
+    printf %s "$pass" | "$gpg" "$@" -o "$name.gpg" &&
         printf '%s\n' "Saved '$name' to the store."
 }
 
@@ -67,12 +67,16 @@ pw_show() {
 pw_copy() {
     pw_show "$1" copy
 
-    if [ "$TMUX" ]; then
-        tmux load-buffer "$pass"
+    # Disable warning against words-splitting as it is safe
+    # and intentional. The '-f' disables globbing while the
+    # clipboard string is split.
+    # shellcheck disable=2086
+    {
+        set -f
+        set +f ${PASH_CLIP:-xclip -selection clipboard}
+    }
 
-    elif hash xclip; then
-        echo "$pass" | xclip -selection clipboard
-    fi
+    printf %s "$pass" | "$@"
 }
 
 pw_list() {
@@ -134,6 +138,7 @@ pash 1.0.0 - simple password manager.
 Using a key pair: export PASH_KEYID=XXXXXXXX
 Password length:  export PASH_LENGTH=50
 Store location:   export PASH_DIR=~/.local/share/pash
+Clipboard tool:   export PASH_CLIP=''
 "
 exit 1
 }