diff --git a/.drone.yml b/.drone.yml
index 5bddd80..326586f 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -10,7 +10,7 @@ steps:
       - git clone https://git.aiterp.net/namegen5/samples
 
   - name: compile-samples
-    image rust:1.50.0-slim
+    image: rust:1.50.0-slim
     depends_on: [download-samples]
     environment:
       SOURCE_DIR: ../samples