diff --git a/src/shell-integration/bash/bash-preexec.sh b/src/shell-integration/bash/bash-preexec.sh
index 14a677888..4a8483052 100644
--- a/src/shell-integration/bash/bash-preexec.sh
+++ b/src/shell-integration/bash/bash-preexec.sh
@@ -1,3 +1,4 @@
+#!/usr/bin/bash
 # bash-preexec.sh -- Bash support for ZSH-like 'preexec' and 'precmd' functions.
 # https://github.com/rcaloras/bash-preexec
 #
diff --git a/src/shell-integration/bash/ghostty.bash b/src/shell-integration/bash/ghostty.bash
index 6a5da35cc..34fd4e923 100644
--- a/src/shell-integration/bash/ghostty.bash
+++ b/src/shell-integration/bash/ghostty.bash
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/usr/bin/bash
 #
 # This is originally based on the recommended bash integration from
 # the semantic prompts proposal as well as some logic from Kitty's
diff --git a/src/shell-integration/elvish/lib/ghostty-integration.elv b/src/shell-integration/elvish/lib/ghostty-integration.elv
index 3d2f4a632..e0ba09f38 100644
--- a/src/shell-integration/elvish/lib/ghostty-integration.elv
+++ b/src/shell-integration/elvish/lib/ghostty-integration.elv
@@ -1,3 +1,4 @@
+#!/usr/bin/elvish
 {
   fn restore-xdg-dirs {
     use str
diff --git a/src/shell-integration/zsh/ghostty-integration b/src/shell-integration/zsh/ghostty-integration
index 662d5febb..6af443986 100755
--- a/src/shell-integration/zsh/ghostty-integration
+++ b/src/shell-integration/zsh/ghostty-integration
@@ -1,4 +1,4 @@
-#!/usr/bin/env zsh
+#!/usr/bin/zsh
 #
 # Based on (started as) a copy of Kitty's zsh integration. Kitty is
 # distributed under GPLv3, so this file is also distributed under GPLv3.