diff --git a/tests/test_shells/input.fish b/tests/test_shells/input.fish
index 658d4899..41f0ca40 100644
--- a/tests/test_shells/input.fish
+++ b/tests/test_shells/input.fish
@@ -2,7 +2,7 @@ set POWERLINE_COMMAND "$PWD/scripts/powerline -p $PWD/powerline/config_files"
 set POWERLINE_COMMAND "$POWERLINE_COMMAND -t default_leftonly.segment_data.hostname.args.only_if_ssh=false"
 set POWERLINE_COMMAND "$POWERLINE_COMMAND -c ext.shell.theme=default_leftonly"
 set VIRTUAL_ENV
-source powerline/bindings/fish/powerline.fish ; cd tests/shell/3rd
+. powerline/bindings/fish/powerline.fish ; cd tests/shell/3rd
 cd .git
 cd ..
 set VIRTUAL_ENV "$HOME/.virtenvs/some-virtual-environment"