diff --git a/maintainers/flake-module.nix b/maintainers/flake-module.nix
index 0742d2a6a..3de348703 100644
--- a/maintainers/flake-module.nix
+++ b/maintainers/flake-module.nix
@@ -197,10 +197,6 @@
               ''^tests/functional/user-envs\.sh$''
               ''^tests/functional/why-depends\.sh$''
 
-              # Shellcheck doesn't support fish or zsh shell syntax
-              ''^misc/fish/completion\.fish$''
-              ''^misc/zsh/completion\.zsh$''
-
               # Content-addressed test files that use recursive-*looking* sourcing
               # (cd .. && source <self>), causing shellcheck to loop
               # They're small wrapper scripts with not a lot going on
diff --git a/misc/fish/completion.fish b/misc/fish/completion.fish
index c6b8ef16a..b6584963b 100644
--- a/misc/fish/completion.fish
+++ b/misc/fish/completion.fish
@@ -1,3 +1,4 @@
+# shellcheck disable=all
 function _nix_complete
   # Get the current command up to a cursor.
   # - Behaves correctly even with pipes and nested in commands like env.
diff --git a/misc/zsh/completion.zsh b/misc/zsh/completion.zsh
index f9b3dca74..eb26a16cb 100644
--- a/misc/zsh/completion.zsh
+++ b/misc/zsh/completion.zsh
@@ -1,3 +1,4 @@
+# shellcheck disable=all
 #compdef nix
 
 function _nix() {