diff --git a/appveyor.yml b/appveyor.yml
index 4c5fb2a..a3950d1 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -23,7 +23,7 @@ environment:
 build: off
 
 install:
-  - C:\\Python37\\pip install .[test]
+  - C:\\Python37\\python -m pip install .[test]
 
 test_script:
   - cmd: set WEXPECT_SPAWN_CLASS=SpawnPipe