diff --git a/Tasks/RestoreSqlDatabaseToSqlDatabase/task.json b/Tasks/RestoreSqlDatabaseToSqlDatabase/task.json
index bedbe4c..b0fddca 100644
--- a/Tasks/RestoreSqlDatabaseToSqlDatabase/task.json
+++ b/Tasks/RestoreSqlDatabaseToSqlDatabase/task.json
@@ -61,7 +61,7 @@
             "required": true,
             "helpMarkDown": "How many minutes into the past to look for a backup to restore from.",
             "validation": { 
-                  "expression": "isMatch(value,'^\d+$','IgnoreCase')",
+                  "expression": "isMatch(value,'^\\d+$','IgnoreCase')",
                   "message": "Must be an integer."
               }
         }