diff --git a/fs_mgr/libsnapshot/snapshot.cpp b/fs_mgr/libsnapshot/snapshot.cpp
index 6570044..21b720e 100644
--- a/fs_mgr/libsnapshot/snapshot.cpp
+++ b/fs_mgr/libsnapshot/snapshot.cpp
@@ -1410,7 +1410,7 @@
             return false;
         }
 
-        CHECK(base_sectors == target.spec.length);
+        CHECK(base_sectors <= target.spec.length);
 
         if (!snapuserd_client_->AttachDmUser(misc_name)) {
             // This error is unrecoverable. We cannot proceed because reads to