diff --git a/Request.js b/Request.js
index 92ca360..4bb10dd 100644
--- a/Request.js
+++ b/Request.js
@@ -190,7 +190,8 @@ define([
 					target = '(' + target + ')';
 				}
 			}
-			return [encodeURIComponent(args[0]) + '=' + (type === 'eq' ? '' : type + '=') + encodeURIComponent(target)];
+			return [encodeURIComponent(args[0]) + '=' + (type === 'eq' ? '' : type + '=') +
+				encodeURIComponent(target).replace(/\(/g, "%28").replace(/\)/g, "%29")];
 		},
 		_renderSortParams: function (sort) {
 			// summary:
@@ -293,4 +294,4 @@ define([
 		}
 	});
 
-});
\ No newline at end of file
+});