--- /release/scripts/addons/io_import_images_as_planes.py
+++ /release/scripts/addons/io_import_images_as_planes.py
@@ -385,7 +385,7 @@
         # Why does mesh.primitive_plane_add leave the object in edit mode???
         if plane.mode is not 'OBJECT':
             bpy.ops.object.mode_set(mode='OBJECT')
-        plane.dimensions = x, y, 0.0
+        plane.dimensions = y, x, 0.0
         plane.name = material.name
         bpy.ops.object.transform_apply(scale=True)
         plane.data.uv_textures.new()