diff --git a/makeTS.go b/makeTS.go
index 59e102c..d931789 100644
--- a/makeTS.go
+++ b/makeTS.go
@@ -336,7 +336,7 @@ func makeClass(t reflect.Type, existsClasses *map[string]string, sameClassIndex
 		if len(implements) > 0 {
 			implementsStr = " extends " + strings.Join(implements, ", ")
 		}
-		newClass := append([]string{}, "interface "+useTypeName+implementsStr+" {")
+		newClass := append([]string{}, "export interface "+useTypeName+implementsStr+" {")
 		newClass = append(newClass, classItems...)
 		newClass = append(newClass, "}")
 		*classes = append(*classes, strings.Join(newClass, "\n"))