diff --git a/Lib/test/test_curses.py b/Lib/test/test_curses.py
index bbc73a9..54c310e 100644
--- a/Lib/test/test_curses.py
+++ b/Lib/test/test_curses.py
@@ -216,8 +216,8 @@
         if availmask != 0:
             curses.mouseinterval(10)
             # just verify these don't cause errors
+            curses.ungetmouse(0, 0, 0, 0, curses.BUTTON1_PRESSED)
             m = curses.getmouse()
-            curses.ungetmouse(*m)
 
     if hasattr(curses, 'is_term_resized'):
         curses.is_term_resized(*stdscr.getmaxyx())
diff --git a/Misc/NEWS b/Misc/NEWS
index fe60cbb..ec1256a 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -23,6 +23,13 @@
 
 - Issue #7567: Don't call `setupterm' twice.
 
+Tests
+-----
+
+- Issue #8433: Fix test_curses failure caused by newer versions of
+  ncurses returning ERR from getmouse() when there are no mouse
+  events available.
+
 
 What's New in Python 2.6.6 rc 1?
 ================================