diff --git a/ninja.py b/ninja.py
index 91a0a1e42..f331e71d7 100755
--- a/ninja.py
+++ b/ninja.py
@@ -39,8 +39,8 @@ def fallback(ninja_args):
   print(
       'depot_tools/ninja.py: Could not find Ninja in the third_party of '
       'the current project, nor in your PATH.\n'
-      'Please take a following action to install Ninja.\n'
-      '- If your project has DEPS, Add a CIPD Ninja dependency to DEPS.\n'
+      'Please take one of the following actions to install Ninja:\n'
+      '- If your project has DEPS, add a CIPD Ninja dependency to DEPS.\n'
       '- Otherwise, add Ninja to your PATH *after* depot_tools.',
       file=sys.stderr)
   return 1