diff --git a/external_full.xml b/external_full.xml
index f07c70b..35bfe8a 100644
--- a/external_full.xml
+++ b/external_full.xml
@@ -66,6 +66,9 @@
   <project path="src/third_party/u-boot/files"
            name="mirrors/cros/chromiumos/third_party/u-boot"
            revision="39ce6d27ad29fd324793a8d0c7db8ae712cc027c" />
+  <project path="src/third_party/flashmap"
+           name="mirrors/cros/chromiumos/third_party/flashmap"
+           revision="9c71c8331ad52a11d29496ffb10cbdb1a51e2ccb" />
 
   <!-- COS sources -->
   <project path="src/overlays"