diff --git a/lib/schema/columncompiler.js b/lib/schema/columncompiler.js
index 4b69e40b..52d4fd76 100644
--- a/lib/schema/columncompiler.js
+++ b/lib/schema/columncompiler.js
@@ -110,6 +110,8 @@ ColumnCompiler.prototype.notNullable = function() {
 ColumnCompiler.prototype.defaultTo = function(value) {
   if (value === void 0) {
     return '';
+  } else if (value === null) {
+    value = "null";
   } else if (value instanceof Raw) {
     value = value.toQuery();
   } else if (this.type === 'bool') {
@@ -128,4 +130,4 @@ ColumnCompiler.prototype._num = function(val, fallback) {
   return isNaN(number) ? fallback : number;
 };
 
-module.exports = ColumnCompiler;
\ No newline at end of file
+module.exports = ColumnCompiler;