diff --git a/libexec/pyenv-init b/libexec/pyenv-init
index 60885843..22e1da02 100755
--- a/libexec/pyenv-init
+++ b/libexec/pyenv-init
@@ -61,6 +61,7 @@ function main() {
     ;;
   "print")
     init_dirs
+    warn_path
     print_env
     print_completion
     print_shell_function
@@ -132,6 +133,13 @@ function print_path() {
   esac
 }
 
+function warn_path() {
+  if ! perl -ls0x3A -e 'while (<>) { chomp; ($_ eq $d) && exit 0; } exit 1' -- -d="${PYENV_ROOT}/shims" <<<"$PATH" ; then
+    echo 'echo '\''WARNING: `pyenv init -` no longer sets PATH.'\'
+    echo 'echo '\''Run `pyenv init` to see the necessary changes to make to your configuration.'\'
+  fi
+}
+
 function print_env() {
   case "$shell" in
   fish )
diff --git a/test/init.bats b/test/init.bats
index bcb937c1..121c3b62 100755
--- a/test/init.bats
+++ b/test/init.bats
@@ -90,6 +90,13 @@ OUT
   assert_line 0 "set -gx PATH '${PYENV_ROOT}/shims' \$PATH"
 }
 
+@test "prints a warning if shims not in PATH" {
+  export PATH="$(perl -0x3A -ls -e 'while (<>) { chomp; ($_ ne $d) && print; }' -- -d="${PYENV_ROOT}/shims" <<<"$PATH")"
+  run pyenv-init -
+  assert_success
+  assert_line 0 'echo '\''WARNING: `pyenv init -` no longer sets PATH.'\'
+}
+
 @test "outputs sh-compatible syntax" {
   run pyenv-init - bash
   assert_success