diff --git a/bin/pyenv-activate b/bin/pyenv-activate
index aaa8d7d..ef213c1 100755
--- a/bin/pyenv-activate
+++ b/bin/pyenv-activate
@@ -14,6 +14,12 @@
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
+# Provide pyenv completions
+if [ "$1" = "--complete" ]; then
+  echo --unset
+  exec pyenv-virtualenvs --bare
+fi
+
 { printf "\x1B[31;1m"
   echo
   echo "Failed to activate virtualenv."