diff --git a/bin/pyenv-virtualenv b/bin/pyenv-virtualenv
index a0956c7..3e3aa19 100755
--- a/bin/pyenv-virtualenv
+++ b/bin/pyenv-virtualenv
@@ -467,7 +467,7 @@ if [ -z "${GET_PIP_URL}" ]; then
     unset PIP_VERSION
   else
     # Use custom get-pip URL based on the target version (#1127)
-    case "${DEFINITION_PATH##*/}" in
+    case "${PYENV_VERSION}" in
     2.6 | 2.6.* )
       GET_PIP_URL="https://bootstrap.pypa.io/2.6/get-pip.py"
       ;;