diff --git a/.drone.yml b/.drone.yml
index deede55..91a6d74 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -33,8 +33,8 @@ steps:
   environment:
     SLEEP: 600
   commands:
-    - echo "Go do some debugging - you've got ${SLEEP} seconds"
-    - sleep ${SLEEP}
+    - echo "Go do some debugging - you've got $${SLEEP} seconds"
+    - sleep $${SLEEP}
     - cat test_gcc_1.txt
     - cat test_std.txt
     - cat test_err.txt