diff --git a/CHANGELOG.md b/CHANGELOG.md
index f69975946..b122931f9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,7 +12,7 @@ created.
 ## Upcoming
 
 ### Added
-
+- ([#689](https://github.com/microsoft/InnerEye-DeepLearning/pull/689)) Show default argument values in help message.
 - ([#671](https://github.com/microsoft/InnerEye-DeepLearning/pull/671)) Remove sequence models and unused variables. Simplify README.
 - ([#693](https://github.com/microsoft/InnerEye-DeepLearning/pull/693)) Improve instructions for HelloWorld model in AzureML.
 - ([#678](https://github.com/microsoft/InnerEye-DeepLearning/pull/678)) Add function to get log level name and use it for logging.
diff --git a/InnerEye/Common/generic_parsing.py b/InnerEye/Common/generic_parsing.py
index 4645a3212..062c8269a 100644
--- a/InnerEye/Common/generic_parsing.py
+++ b/InnerEye/Common/generic_parsing.py
@@ -146,7 +146,7 @@ def create_argparser(cls: Type[GenericConfig]) -> argparse.ArgumentParser:
         Creates an ArgumentParser with all fields of the given argparser that are overridable.
         :return: ArgumentParser
         """
-        parser = argparse.ArgumentParser()
+        parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
         cls.add_args(parser)
 
         return parser