diff --git a/.drone.yml b/.drone.yml
index 798255c..fbad27b 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -6,7 +6,7 @@ steps:
   - name: test
     image: rust:1.56
     environment:
-      - CARGO_HOME: ./.cargo_home
+      CARGO_HOME: ./.cargo_home
     commands:
       - cargo build --verbose --all
       - cargo test --verbose --all