diff --git a/etc/pyenv.d/which/whence.bash b/etc/pyenv.d/which/whence.bash
index 889436c..7faf04f 100755
--- a/etc/pyenv.d/which/whence.bash
+++ b/etc/pyenv.d/which/whence.bash
@@ -1,6 +1,9 @@
 if [ -n "$PYENV_COMMAND" ] && [ ! -x "$PYENV_COMMAND_PATH" ]; then
   versions=($(pyenv-whence "${PYENV_COMMAND}" 2>/dev/null || true))
-  if [ "${#versions[@]}" -eq 1 ]; then
-    PYENV_COMMAND_PATH="${PYENV_ROOT}/versions/${versions[0]}/bin/${PYENV_COMMAND}"
+  if [ -n "${versions}" ]; then
+    if [ "${#versions[@]}" -gt 1 ]; then
+      echo "pyenv-implicit: found multiple ${PYENV_COMMAND} in pyenv. Use version ${versions[-1]}." 1>&2
+    fi
+    PYENV_COMMAND_PATH="${PYENV_ROOT}/versions/${versions[-1]}/bin/${PYENV_COMMAND}"
   fi
 fi