diff --git a/io_scene_obj/export_obj.py b/io_scene_obj/export_obj.py
index b4c779d2f75bae4770e908463dd36de425d8ae08..030fad682e94281434802640bbd222909c1021c6 100644
--- a/io_scene_obj/export_obj.py
+++ b/io_scene_obj/export_obj.py
@@ -271,10 +271,10 @@ def write_file(filepath, objects, scene,
         EXPORT_GLOBAL_MATRIX = mathutils.Matrix()
 
     def veckey3d(v):
-        return round(v.x, 6), round(v.y, 6), round(v.z, 6)
+        return round(v.x, 4), round(v.y, 4), round(v.z, 4)
 
     def veckey2d(v):
-        return round(v[0], 6), round(v[1], 6)
+        return round(v[0], 4), round(v[1], 4)
 
     def findVertexGroupName(face, vWeightMap):
         """