diff --git a/bin/pyenv-virtualenv-prefix b/bin/pyenv-virtualenv-prefix
index 3cc56de..ae2f521 100755
--- a/bin/pyenv-virtualenv-prefix
+++ b/bin/pyenv-virtualenv-prefix
@@ -35,9 +35,7 @@ for version in "${versions[@]}"; do
   PREFIX="$(pyenv-prefix "${version}")"
   if [ -f "${PREFIX}/bin/activate" ]; then
     VIRTUALENV_PREFIX_PATH="$(real_prefix "${version}" || base_prefix "${version}" || true)"
-    if [ -d "${VIRTUALENV_PREFIX_PATH}" ]; then
-      VIRTUALENV_PREFIX_PATHS=("${VIRTUALENV_PREFIX_PATHS[@]}" "$VIRTUALENV_PREFIX_PATH")
-    fi
+    VIRTUALENV_PREFIX_PATHS=("${VIRTUALENV_PREFIX_PATHS[@]}" "$VIRTUALENV_PREFIX_PATH")
   else
     echo "pyenv-virtualenv: version \`${version}' is not a virtualenv" 1>&2
     exit 1
diff --git a/test/virtualenv-prefix.bats b/test/virtualenv-prefix.bats
new file mode 100644
index 0000000..4a6fee1
--- /dev/null
+++ b/test/virtualenv-prefix.bats
@@ -0,0 +1,145 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+}
+
+create_virtualenv() {
+  mkdir -p "${PYENV_ROOT}/versions/$1/bin"
+  touch "${PYENV_ROOT}/versions/$1/bin/activate"
+}
+
+remove_virtualenv() {
+  rm -fr "${PYENV_ROOT}/versions/$1"
+}
+
+@test "display prefix with using sys.real_prefix" {
+  stub pyenv-version-name "echo venv27"
+  stub pyenv-prefix "venv27 : echo \"${PYENV_ROOT}/versions/venv27\""
+  stub pyenv-exec "echo \"${PYENV_ROOT}/versions/2.7.6\""
+  create_virtualenv "venv27"
+
+  PYENV_VERSION="venv27" run pyenv-virtualenv-prefix
+
+  unstub pyenv-version-name
+  unstub pyenv-prefix
+  unstub pyenv-exec
+  remove_virtualenv "venv27"
+
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/2.7.6
+OUT
+}
+
+@test "display prefixes with using sys.real_prefix" {
+  stub pyenv-version-name "echo venv27:venv32"
+  stub pyenv-prefix "venv27 : echo \"${PYENV_ROOT}/versions/venv27\"" \
+                    "venv32 : echo \"${PYENV_ROOT}/versions/venv32\""
+  stub pyenv-exec "echo \"${PYENV_ROOT}/versions/2.7.6\"" \
+                  "echo \"${PYENV_ROOT}/versions/3.2.1\""
+  create_virtualenv "venv27"
+  create_virtualenv "venv32"
+
+  PYENV_VERSION="venv27:venv32" run pyenv-virtualenv-prefix
+
+  unstub pyenv-version-name
+  unstub pyenv-prefix
+  unstub pyenv-exec
+  remove_virtualenv "venv27"
+  remove_virtualenv "venv32"
+
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/2.7.6:${PYENV_ROOT}/versions/3.2.1
+OUT
+}
+
+@test "display prefix with using sys.base_prefix" {
+  stub pyenv-version-name "echo venv33"
+  stub pyenv-prefix "venv33 : echo \"${PYENV_ROOT}/versions/venv33\""
+  stub pyenv-exec "false" \
+                  "echo \"${PYENV_ROOT}/versions/3.3.3\""
+  create_virtualenv "venv33"
+
+  PYENV_VERSION="venv33" run pyenv-virtualenv-prefix
+
+  unstub pyenv-version-name
+  unstub pyenv-prefix
+  unstub pyenv-exec
+  remove_virtualenv "venv33"
+
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/3.3.3
+OUT
+}
+
+@test "display prefixes with using sys.base_prefix" {
+  stub pyenv-version-name "echo venv33:venv34"
+  stub pyenv-prefix "venv33 : echo \"${PYENV_ROOT}/versions/venv33\"" \
+                    "venv34 : echo \"${PYENV_ROOT}/versions/venv34\""
+  stub pyenv-exec "false" \
+                  "echo \"${PYENV_ROOT}/versions/3.3.3\"" \
+                  "false" \
+                  "echo \"${PYENV_ROOT}/versions/3.4.0\""
+  create_virtualenv "venv33"
+  create_virtualenv "venv34"
+
+  PYENV_VERSION="venv33:venv34" run pyenv-virtualenv-prefix
+
+  unstub pyenv-version-name
+  unstub pyenv-prefix
+  unstub pyenv-exec
+  remove_virtualenv "venv33"
+  remove_virtualenv "venv34"
+
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/3.3.3:${PYENV_ROOT}/versions/3.4.0
+OUT
+}
+
+@test "should fail if the version is not a virtualenv" {
+  stub pyenv-version-name "echo 3.4.0"
+  stub pyenv-prefix "3.4.0 : echo \"${PYENV_ROOT}/versions/3.4.0\""
+  mkdir -p "${PYENV_ROOT}/versions/3.4.0"
+
+  PYENV_VERSION="3.4.0" run pyenv-virtualenv-prefix
+
+  unstub pyenv-version-name
+  unstub pyenv-prefix
+  rmdir "${PYENV_ROOT}/versions/3.4.0"
+
+  assert_failure
+  assert_output <<OUT
+pyenv-virtualenv: version \`3.4.0' is not a virtualenv
+OUT
+}
+
+@test "should fail if one of the versions is not a virtualenv" {
+  stub pyenv-version-name "echo venv33:3.4.0"
+  stub pyenv-prefix "venv33 : echo \"${PYENV_ROOT}/versions/venv33\"" \
+                    "3.4.0 : echo \"${PYENV_ROOT}/versions/3.4.0\""
+  stub pyenv-exec "false" \
+                  "echo \"${PYENV_ROOT}/versions/3.3.3\""
+  create_virtualenv "venv33"
+  mkdir -p "${PYENV_ROOT}/versions/3.4.0"
+
+  PYENV_VERSION="venv33:3.4.0" run pyenv-virtualenv-prefix
+
+  unstub pyenv-version-name
+  unstub pyenv-prefix
+  unstub pyenv-exec
+  remove_virtualenv "venv33"
+  rmdir "${PYENV_ROOT}/versions/3.4.0"
+
+  assert_failure
+  assert_output <<OUT
+pyenv-virtualenv: version \`3.4.0' is not a virtualenv
+OUT
+}
+
+