diff --git a/main.tf b/main.tf
index 7523c3a..6cfdd33 100644
--- a/main.tf
+++ b/main.tf
@@ -90,7 +90,7 @@ resource "null_resource" "data_share" {
 
   provisioner "remote-exec" {
     inline = [
-      "${var.data_share} != null && mkdir -p --mode=og=rwx /data/${local.domain_name}"
+      "if [ \"${var.data_share}\" != \"null\"; then mkdir -p --mode=og=rwx /data/${local.domain_name}; fi"
     ]
   }
 }