diff --git a/pre_commit/commands/validate_config.py b/pre_commit/commands/validate_config.py
index b3de635b..911348bd 100644
--- a/pre_commit/commands/validate_config.py
+++ b/pre_commit/commands/validate_config.py
@@ -8,11 +8,16 @@ from pre_commit import clientlib
 def validate_config(filenames: Sequence[str]) -> int:
     ret = 0
 
+    if not filenames:
+        raise FileNotFoundError("No files found. Did you supply a config to validate? (E.g. pre-commit validate-config path/to/.pre-commit-config.yaml)")
+
     for filename in filenames:
         try:
             clientlib.load_config(filename)
         except clientlib.InvalidConfigError as e:
             print(e)
             ret = 1
-
+    if ret == 0:
+        formatted_filenames = "\n".join([filename for filename in filenames])
+        print(f"The following configs were validated:\n{formatted_filenames}")
     return ret