diff --git a/src/dotenv/cli.py b/src/dotenv/cli.py
index 7a4c7adc..58c51eb3 100644
--- a/src/dotenv/cli.py
+++ b/src/dotenv/cli.py
@@ -136,7 +136,7 @@ def get(ctx: click.Context, key: Any) -> None:
         values = dotenv_values(stream=stream)
 
     stored_value = values.get(key)
-    if stored_value:
+    if stored_value is not None:
         click.echo(stored_value)
     else:
         sys.exit(1)