diff --git a/libexec/pyenv-version-file-write b/libexec/pyenv-version-file-write
index d1389cd2..db9e0f3b 100755
--- a/libexec/pyenv-version-file-write
+++ b/libexec/pyenv-version-file-write
@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
-# Usage: pyenv version-file-write [-f|--force] <file> <version>
+# Usage: pyenv version-file-write [-f|--force] <file> <version> [...]
+#
+#   -f/--force    Don't verify that the versions exist
 
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
diff --git a/test/version-file-write.bats b/test/version-file-write.bats
index 38281f9e..1b62e977 100644
--- a/test/version-file-write.bats
+++ b/test/version-file-write.bats
@@ -9,7 +9,7 @@ setup() {
 
 @test "invocation without 2 arguments prints usage" {
   run pyenv-version-file-write
-  assert_failure "Usage: pyenv version-file-write <file> <version>"
+  assert_failure "Usage: pyenv version-file-write [-f|--force] <file> <version> [...]"
   run pyenv-version-file-write "one" ""
   assert_failure
 }