diff --git a/lib/torque/provider.windshaft.js b/lib/torque/provider.windshaft.js
index 51b6244..2ecaa97 100644
--- a/lib/torque/provider.windshaft.js
+++ b/lib/torque/provider.windshaft.js
@@ -326,6 +326,13 @@
       return this.options.sql || "select * from " + this.options.table;
     },
 
+    setSQL: function(sql) {
+      if (this.options.sql != sql) {
+        this.options.sql = sql;
+        this.reload();
+      }
+    },
+
     _tilerHost: function() {
       var opts = this.options;
       var user = (opts.user_name || opts.user);