diff --git a/sky/adaptors/aws.py b/sky/adaptors/aws.py
index 6d1e5252fce..1845dfc361c 100644
--- a/sky/adaptors/aws.py
+++ b/sky/adaptors/aws.py
@@ -85,7 +85,7 @@ def wrapper(*args, **kwargs):
                 boto3 = _boto3
                 botocore = _botocore
             except ImportError:
-                raise ImportError('Fail to import dependencies for AWS.'
+                raise ImportError('Fail to import dependencies for AWS. '
                                   'Try pip install "skypilot[aws]"') from None
         return func(*args, **kwargs)