diff --git a/.circleci/scripts/validate-allow-scripts.sh b/.circleci/scripts/validate-allow-scripts.sh
index 6e9f95051..e466f039c 100755
--- a/.circleci/scripts/validate-allow-scripts.sh
+++ b/.circleci/scripts/validate-allow-scripts.sh
@@ -6,7 +6,7 @@ set -o pipefail
 
 yarn allow-scripts auto
 
-if git diff-index --quiet HEAD
+if git diff --exit-code --quiet
 then
   echo "allow-scripts configuration is up-to-date"
 else
diff --git a/.circleci/scripts/validate-lavamoat-policy.sh b/.circleci/scripts/validate-lavamoat-policy.sh
index 65295c777..4eab30b75 100755
--- a/.circleci/scripts/validate-lavamoat-policy.sh
+++ b/.circleci/scripts/validate-lavamoat-policy.sh
@@ -6,7 +6,7 @@ set -o pipefail
 
 yarn lavamoat:auto
 
-if git diff-index --quiet HEAD
+if git diff --exit-code --quiet
 then
   echo "LavaMoat policy is up-to-date"
 else