diff --git a/lib/create-sort.js b/lib/create-sort.js
index 88bcaa5..b4a6d2d 100644
--- a/lib/create-sort.js
+++ b/lib/create-sort.js
@@ -89,12 +89,14 @@ function _testQuery(doubleTestTrue, doubleTestFalse, singleTest) {
 	 * @return {boolean}
 	 */
 	return function (query) {
-		if (doubleTestTrue.test(query)) {
-			return true;
-		} else if (doubleTestFalse.test(query)) {
-			return false;
-		}
-		return singleTest.test(query);
+		let result;
+
+		if (doubleTestTrue.test(query)) result = true;
+		else if (doubleTestFalse.test(query)) result = false;
+		else result = singleTest.test(query);
+
+		/** Not keyword inverts the whole query */
+		return query.includes('not') ? !result : result;
 	};
 }