diff --git a/meta/lib/oe/image.py b/meta/lib/oe/image.py
index 2361955..f9e9bfd 100644
--- a/meta/lib/oe/image.py
+++ b/meta/lib/oe/image.py
@@ -172,6 +172,8 @@
 
         if base_size != int(base_size):
             base_size = int(base_size + 1)
+        else:
+            base_size = int(base_size)
 
         base_size += rootfs_alignment - 1
         base_size -= base_size % rootfs_alignment