diff --git a/CHANGELOG b/CHANGELOG
index a9ff36b22..4bdf9dab1 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -8,7 +8,10 @@ Changes between 1.0.0b3 and 1.0.0
 
 * apply modified patches from Andreas Kloeckner to allow 
   test functions to have no func_code (#22) and to make 
-  "-k" and function keywords work  (#20)
+  "-k" and function keywords work  (#20) 
+
+* apply patch from Daniel Peolzleithner (issue #23) 
+
 
 Changes between 1.0.0b1 and 1.0.0b3
 =============================================
diff --git a/py/io/stdcapture.py b/py/io/stdcapture.py
index 2c4bd376c..eed9fb029 100644
--- a/py/io/stdcapture.py
+++ b/py/io/stdcapture.py
@@ -137,6 +137,9 @@ class DontReadFromInput:
     readlines = read
     __iter__ = read
 
+    def isatty(self):
+	return False
+
 try:
     devnullpath = os.devnull
 except AttributeError: