diff --git a/build-constraints.yaml b/build-constraints.yaml
index c3abf0cf..26a2239b 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8646,6 +8646,7 @@ skipped-tests:
     - incremental-parser # Main: executable not found
     - quickcheck-state-machine # test: executable not found
     - streamt # executable not found
+    - sandwich-contexts # assumes nix is present
 
 # end of skipped-tests