diff --git a/src/firebase_functions/https_fn.py b/src/firebase_functions/https_fn.py
index 7233e7f..30c8596 100644
--- a/src/firebase_functions/https_fn.py
+++ b/src/firebase_functions/https_fn.py
@@ -263,7 +263,7 @@ def __init__(
 
         self._http_error_code = _error_code_map[code]
 
-        super().__init__()
+        super().__init__(message)
 
     def _as_dict(self) -> _HttpErrorWireFormat:
         if self.details is None:
diff --git a/tests/test_https_fn.py b/tests/test_https_fn.py
index 7a937e2..8123669 100644
--- a/tests/test_https_fn.py
+++ b/tests/test_https_fn.py
@@ -96,3 +96,16 @@ def init():
             decorated_func(request)
 
         self.assertEqual("world", hello)
+
+    def test_https_error_passes_message_to_super(self):
+        """
+        HttpsError should pass the message to the base Exception so that
+        str(err) and err.args contain the message.
+        """
+        err = https_fn.HttpsError(
+            code=https_fn.FunctionsErrorCode.INVALID_ARGUMENT,
+            message="something went wrong",
+        )
+
+        self.assertEqual(str(err), "something went wrong")
+        self.assertEqual(err.args, ("something went wrong",))