diff --git a/appveyor.yml b/appveyor.yml
index 038e523..957283d 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -35,7 +35,7 @@ build_script:
   - ls
 
   # Set up micromamba
-  - ./micromamba shell init -s bash -p ~/micromamba
+  - ./micromamba shell init -s bash --root-prefix ~/micromamba
   - source ~/.bashrc
   - source ~/.profile
   - hash -r