diff --git a/src/deploy.rs b/src/deploy.rs
index b940dfa..87c604c 100644
--- a/src/deploy.rs
+++ b/src/deploy.rs
@@ -697,7 +697,7 @@ mod test {
 
         let opt = Options::default();
         let handlebars = handlebars::Handlebars::new();
-        let variables = Default::default();
+        let variables = BTreeMap::new();
 
         // Expectation:
         // create_symlink
@@ -800,7 +800,7 @@ mod test {
 
         let opt = Options::default();
         let handlebars = handlebars::Handlebars::new();
-        let variables = Default::default();
+        let variables = BTreeMap::new();
 
         // Expectation:
         // create_symlink