diff --git a/import_images_as_planes.py b/import_images_as_planes.py
index 3c22d57327b80e3edb53a2eca108bca2ab7901f0..519ec362f9b4c66a8bb255b13ed2748a93862ec5 100644
--- a/import_images_as_planes.py
+++ b/import_images_as_planes.py
@@ -294,6 +294,8 @@ def mapset(self, value):
         and self.texture_slots[0].texture.type == 'IMAGE'
         and self.texture_slots[0].texture.image):
         self.texture_slots[0].texture.image.premultiply = value[5]
+    if self.alpha:
+        self.texture_slots[0].map_alpha=True
 
 
 bpy.types.Material.mapping = property(mapget, mapset)