diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3a195957..fd0aa222 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2843,6 +2843,7 @@ packages:
 
     "Florian Hofmann fho@f12n.de @fhaust":
         - vector-split
+        - vector-mmap
 
     "Alex Mason <alex.mason@data61.csiro.au> @Axman6":
       - foldl-statistics