diff --git a/master.cfg b/master.cfg
index 58daa7b..eb2e70d 100644
--- a/master.cfg
+++ b/master.cfg
@@ -744,13 +744,17 @@ ZC_BUILDOUT_PLATFORMS = CLEAN_PLATFORMS.copy()
 del ZC_BUILDOUT_PLATFORMS['py_244_win32']
 del ZC_BUILDOUT_PLATFORMS['py_254_win32']
 
+ZC_BUILDOUT_PLATFORMS_16 = CLEAN_PLATFORMS.copy()
+del ZC_BUILDOUT_PLATFORMS_16['py_244_win32']
 
-def setup_zc_buildout_dev_tests(slow_lock, hour=02, minute=20, branch='HEAD'):
+
+def setup_zc_buildout_dev_tests(slow_lock, hour=02, minute=20, branch='HEAD',
+                                platforms=ZC_BUILDOUT_PLATFORMS):
     #hour = 02
     #minute = 20
     builders = []
-    for pname in sorted(ZC_BUILDOUT_PLATFORMS.keys()):
-        platform = ZC_BUILDOUT_PLATFORMS[pname]
+    for pname in sorted(platforms.keys()):
+        platform = platforms[pname]
         name = "zc_buildout_dev %s %s" % (platform.name, branch)
         builders.append(name)
         c['builders'].append(
@@ -1032,7 +1036,6 @@ def bsquare_make_factory(svn_url):
               description="buildout",
               timeout=3600))
 
-
     if is_win32:
         command = "bin\\test.exe --exit-with-status -1"
     else:
@@ -1161,7 +1164,8 @@ setupZTK_dev_tests(slow_lock, hour=20, minute=10)
 setupZTK_10_tests(slow_lock, hour=20, minute=20)
 setupZTK_11_tests(slow_lock, hour=20, minute=30)
 setup_zc_buildout_dev_tests(slow_lock, hour=20, minute=40, branch='master')
-setup_zc_buildout_dev_tests(slow_lock, hour=20, minute=40, branch='1.6.x')
+setup_zc_buildout_dev_tests(slow_lock, hour=20, minute=40, branch='1.6.x',
+                            platforms=ZC_BUILDOUT_PLATFORMS_16)
 setup_ZODB_dev_tests(slow_lock, hour=20, minute=50)
 setup_BB_dev_tests(slow_lock, hour=20, minute=55)