diff --git a/pre_commit/repository.py b/pre_commit/repository.py
index aa841856..06d3617d 100644
--- a/pre_commit/repository.py
+++ b/pre_commit/repository.py
@@ -65,7 +65,7 @@ def _hook_installed(hook: Hook) -> bool:
 
 def _hook_install(hook: Hook) -> None:
     logger.info(f'Installing environment for {hook.src}.')
-    logger.info('Once installed this environment will be reused.')
+    logger.info('Once installed, this environment will be reused.')
     logger.info('This may take a few minutes...')
 
     if hook.language == 'python_venv':