diff --git a/appveyor.yml b/appveyor.yml
index bb813e69..d6112253 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -24,6 +24,7 @@ init:
 install:
     - conda config --set always_yes yes --set changeps1 no
     - conda update -q conda
+    - conda init
     - conda env create -f environment.yml
     - conda activate cadquery
     - pip install git+https://github.com/CadQuery/OCP-stubs.git@7.5.1