diff --git a/nixos/maintainers/scripts/ec2/create-amis.sh b/nixos/maintainers/scripts/ec2/create-amis.sh
index 6be9cd59400..085de5a647d 100755
--- a/nixos/maintainers/scripts/ec2/create-amis.sh
+++ b/nixos/maintainers/scripts/ec2/create-amis.sh
@@ -178,9 +178,12 @@ upload_image() {
     local aws_path=${image_file#/}
 
     local state_key="$region.$image_label.$image_system"
-    local task_id=$(read_state "$state_key" task_id)
-    local snapshot_id=$(read_state "$state_key" snapshot_id)
-    local ami_id=$(read_state "$state_key" ami_id)
+    local task_id
+    task_id=$(read_state "$state_key" task_id)
+    local snapshot_id
+    snapshot_id=$(read_state "$state_key" snapshot_id)
+    local ami_id
+    ami_id=$(read_state "$state_key" ami_id)
 
     if [ -z "$task_id" ]; then
         log "Checking for image on S3"