diff --git a/generator/main.go b/generator/main.go
index 9a9bad55..86e7d676 100644
--- a/generator/main.go
+++ b/generator/main.go
@@ -127,7 +127,13 @@ func GenFromPath(mdir string, cols []Column, tableName string, tableComment stri
 		typeName := typeForMysqlToGo[col.GetType()]
 		var defaultString string
 		if col.DefaultValue != nil {
-			defaultString = "default:" + *col.DefaultValue + ";"
+			switch typeName {
+			case "*int64", "*uint64", "*float64", "*bool":
+				defaultString = "default:" + strings.Trim(*col.DefaultValue, "'") + ";"
+			default:
+				defaultString = "default:" + *col.DefaultValue + ";"
+			}
+
 		} else {
 
 			switch typeName {
@@ -138,11 +144,11 @@ func GenFromPath(mdir string, cols []Column, tableName string, tableComment stri
 			case "*[]byte":
 				defaultString = "default:'';"
 			case "*int64", "*uint64":
-				defaultString = "default:'0';"
+				defaultString = "default:0;"
 			case "*float64":
-				defaultString = "default:'0.0';"
+				defaultString = "default: 0.0;"
 			case "*bool":
-				defaultString = "default:'0';"
+				defaultString = "default:0;"
 			default:
 				fieldName = "// " + fieldName + " " + col.Type
 			}