diff --git a/.github/actions/build-linux/entrypoint.sh b/.github/actions/build-linux/entrypoint.sh
index bf2b8f430..2802e0a5e 100644
--- a/.github/actions/build-linux/entrypoint.sh
+++ b/.github/actions/build-linux/entrypoint.sh
@@ -3,7 +3,7 @@
 # Fail on any errors
 set -e
 
-if [[ -z "$GITHUB_WORKSPACE" ]]; then
+if [ -z "$GITHUB_WORKSPACE" ]; then
   echo "Set the GITHUB_WORKSPACE env variable."
   exit 1
 fi
diff --git a/.github/actions/build-snap/entrypoint.sh b/.github/actions/build-snap/entrypoint.sh
index 9470508f6..d24769030 100644
--- a/.github/actions/build-snap/entrypoint.sh
+++ b/.github/actions/build-snap/entrypoint.sh
@@ -3,7 +3,7 @@
 # Fail on any errors
 set -e
 
-if [[ -z "$GITHUB_WORKSPACE" ]]; then
+if [ -z "$GITHUB_WORKSPACE" ]; then
   echo "Set the GITHUB_WORKSPACE env variable."
   exit 1
 fi