diff --git a/pkgs/development/interpreters/python/hooks/pytest-check-hook.sh b/pkgs/development/interpreters/python/hooks/pytest-check-hook.sh
index 3c0bb623b2f9..855c770e31b1 100644
--- a/pkgs/development/interpreters/python/hooks/pytest-check-hook.sh
+++ b/pkgs/development/interpreters/python/hooks/pytest-check-hook.sh
@@ -1,4 +1,5 @@
 # Setup hook for pytest
+# shellcheck shell=bash
 
 echo "Sourcing pytest-check-hook"