diff --git a/Tools/scripts/build_ci.sh b/Tools/scripts/build_ci.sh
index 72f0c1ddf6..6ed0b1a754 100755
--- a/Tools/scripts/build_ci.sh
+++ b/Tools/scripts/build_ci.sh
@@ -47,7 +47,7 @@ function run_autotest() {
         popd
         mavproxy_installed=1
         # now uninstall the version of pymavlink pulled in by MAVProxy deps:
-        pip uninstall -y pymavlink
+        python -m pip uninstall -y pymavlink
     fi
     if [ $pymavlink_installed -eq 0 ]; then
         echo "Installing pymavlink"