diff --git a/src/utils/toSQL.js b/src/utils/toSQL.js
index bd2904f..40577ce 100644
--- a/src/utils/toSQL.js
+++ b/src/utils/toSQL.js
@@ -1,5 +1,5 @@
 import { sqlDataTypes } from "../data/constants";
-import { isFunction, strHasQuotes } from "./utils";
+import { isFunction, isKeyword, strHasQuotes } from "./utils";
 
 export function getJsonType(f) {
   if (!sqlDataTypes.includes(f.type)) {
@@ -144,13 +144,16 @@ export function hasQuotes(type) {
 }
 
 export function parseDefault(field) {
-  if (strHasQuotes(field.default) || isFunction(field.default)) {
+  if (
+    strHasQuotes(field.default) ||
+    isFunction(field.default) ||
+    isKeyword(field.default) ||
+    !hasQuotes(field.type)
+  ) {
     return field.default;
   }
 
-  return hasQuotes(field.type) && field.default.toLowerCase() !== "null"
-    ? `'${field.default}'`
-    : `${field.default}`;
+  return `'${field.default}'`;
 }
 
 export function jsonToMySQL(obj) {
diff --git a/src/utils/utils.js b/src/utils/utils.js
index cafca7c..a51919f 100644
--- a/src/utils/utils.js
+++ b/src/utils/utils.js
@@ -25,6 +25,12 @@ export function strHasQuotes(str) {
   );
 }
 
+const keywords = ["CURRENT_TIMESTAMP", "NULL"];
+
+export function isKeyword(str) {
+  return keywords.includes(str.toUpperCase());
+}
+
 export function isFunction(str) {
   return /\w+\([^)]*\)$/.test(str);
 }