diff --git a/standalone/windows/build.sh b/standalone/windows/build.sh
index e6f7b7e9e8..4d8b643410 100755
--- a/standalone/windows/build.sh
+++ b/standalone/windows/build.sh
@@ -34,6 +34,9 @@ cabal update || true
 
 cabal install --only-dependencies || true
 
+# new version
+cabal install warp
+
 # Detect when the last build was an incremental build and failed, 
 # and try a full build. Done this way because this shell seems a bit
 # broken.