diff --git a/Cargo.toml b/Cargo.toml
index fc237f7da6..e3ffba08b8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -86,3 +86,6 @@ members = [
 exclude = [
     "programs/bpf",
 ]
+
+# This prevents a Travis CI error when building for Windows.
+resolver = "2"