diff --git a/bootstrap.sh b/bootstrap.sh
index b1c418e..955617d 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/env nix-shell
 #! nix-shell -i bash -p bitwarden-cli git gnupg jq nix
+# shellcheck shell=bash
 
 # Command failure is script failure
 set -e
diff --git a/home/zsh/completion-styles.zsh b/home/zsh/completion-styles.zsh
index 156bc2c..87bb014 100644
--- a/home/zsh/completion-styles.zsh
+++ b/home/zsh/completion-styles.zsh
@@ -1,3 +1,5 @@
+# shellcheck shell=bash
+
 # Style the completion a bit
 zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}
 # Show a prompt on selection
diff --git a/home/zsh/extra-mappings.zsh b/home/zsh/extra-mappings.zsh
index 3456e13..fea2f96 100644
--- a/home/zsh/extra-mappings.zsh
+++ b/home/zsh/extra-mappings.zsh
@@ -1,3 +1,4 @@
+# shellcheck shell=bash
 # shellcheck disable=2154
 
 # Fix Ctrl+u killing from the cursor instead of the whole line
diff --git a/home/zsh/options.zsh b/home/zsh/options.zsh
index 82047ff..32da8d8 100644
--- a/home/zsh/options.zsh
+++ b/home/zsh/options.zsh
@@ -1,3 +1,5 @@
+# shellcheck shell=bash
+
 # Show an error when a globbing expansion doesn't find any match
 setopt nomatch
 # List on ambiguous completion and Insert first match immediately