diff --git a/sdk/python/flet/image.py b/sdk/python/flet/image.py
index b08ee9ac1..057b312e4 100644
--- a/sdk/python/flet/image.py
+++ b/sdk/python/flet/image.py
@@ -56,7 +56,7 @@ def __init__(
         #
         # Specific
         #
-        src_base64: bool = None,
+        src_base64: str = None,
         repeat: ImageRepeat = None,
         fit: ImageFit = None,
         border_radius: BorderRadiusValue = None,