diff --git a/.github/linters/ct.yaml b/.github/linters/ct.yaml
index 780b694e4602..bee41e160367 100644
--- a/.github/linters/ct.yaml
+++ b/.github/linters/ct.yaml
@@ -12,5 +12,9 @@ excluded-charts:
   # If not running on GCE, will error: "Failed to get GCE config"
   - prometheus-to-sd
 additional-commands:
-  - sh -c "if [ -f '{{ .Path }}/ci/lint.sh' ]; then exec bash '{{ .Path }}/ci/lint.sh'; fi"
+  - |
+    sh -ec "if [ -f '{{ .Path }}/ci/lint.sh' ]; then
+      shellcheck '{{ .Path }}/ci/lint.sh'
+      exec bash '{{ .Path }}/ci/lint.sh'
+    fi"
   # - helm unittest --helm3 --strict --file unittests/*.yaml --file 'unittests/**/*.yaml' {{ .Path }}