diff --git a/plugins/available/virtualenv.plugin.bash b/plugins/available/virtualenv.plugin.bash
index f1c85987..41d55ddf 100644
--- a/plugins/available/virtualenv.plugin.bash
+++ b/plugins/available/virtualenv.plugin.bash
@@ -1,12 +1,14 @@
+# shellcheck shell=bash
+#
 # make sure virtualenvwrapper is enabled if available
 
 cite about-plugin
 about-plugin 'virtualenvwrapper and pyenv-virtualenvwrapper helper functions'
 
 if _command_exists pyenv; then
-  pyenv virtualenvwrapper
-else
-  [[ `which virtualenvwrapper.sh` ]] && . virtualenvwrapper.sh
+	pyenv virtualenvwrapper
+elif _command_exists virtualenvwrapper.sh; then
+	source virtualenvwrapper.sh
 fi