diff --git a/sanity_check.sh b/sanity_check.sh
index c832ef7..d533150 100755
--- a/sanity_check.sh
+++ b/sanity_check.sh
@@ -5,7 +5,7 @@ echo "Loading the Markdown files that have changed"
 for x in $(git diff --name-only HEAD origin/main -- "articles/*.md")
 do
   is_valid_md=$(python validate_markdown_metadata.py $x)
-  if $is_valid_md; then
+  if [[ $is_valid_md == "True" ]]; then
     echo "Validating file $x"
   else
     echo "File $x failed"