diff --git a/britney.py b/britney.py
index fe65cc3..f6423a8 100755
--- a/britney.py
+++ b/britney.py
@@ -2604,12 +2604,12 @@ class Britney(object):
         # smooth updates
         if self.options.smooth_updates:
             self.__log("> Removing old packages left in testing from smooth updates", type="I")
-            removals = old_libraries(self.sources, self.binaries)
+            removals = old_libraries(self.sources, self.binaries, self.options.fucked_arches)
             if removals:
                 self.output_write("Removing packages left in testing for smooth updates (%d):\n%s" % \
                     (len(removals), old_libraries_format(removals)))
                 self.do_all(actions=removals)
-                removals = old_libraries(self.sources, self.binaries)
+                removals = old_libraries(self.sources, self.binaries, self.options.fucked_arches)
         else:
             removals = ()
 
diff --git a/britney_util.py b/britney_util.py
index 99d9760..6915126 100644
--- a/britney_util.py
+++ b/britney_util.py
@@ -552,7 +552,7 @@ def write_controlfiles(sources, packages, suite, basedir):
     write_sources(sources_s, os.path.join(basedir, 'Sources'))
 
 
-def old_libraries(sources, packages, same_source=same_source):
+def old_libraries(sources, packages, fucked_arches=frozenset(), same_source=same_source):
     """Detect old libraries left in testing for smooth transitions
 
     This method detects old libraries which are in testing but no
@@ -560,6 +560,10 @@ def old_libraries(sources, packages, same_source=same_source):
     other packages still depend on them, but they should be removed as
     soon as possible.
 
+    For "fucked" architectures, outdated binaries are allowed to be in
+    testing, so they are only added to the removal list if they are no longer
+    in unstable.
+
     same_source is an optimisation to avoid "load global".
     """
     sources_t = sources['testing']
@@ -569,7 +573,8 @@ def old_libraries(sources, packages, same_source=same_source):
     for arch in testing:
         for pkg_name in testing[arch][0]:
             pkg = testing[arch][0][pkg_name]
-            if not same_source(sources_t[pkg[SOURCE]][VERSION], pkg[SOURCEVER]):
+            if not same_source(sources_t[pkg[SOURCE]][VERSION], pkg[SOURCEVER]) and \
+                (arch not in fucked_arches or pkg_name not in unstable[arch][0]):
                 migration = "-" + "/".join((pkg_name, arch, pkg[SOURCEVER]))
                 removals.append(MigrationItem(migration))
     return removals