diff --git a/Lib/test/test_threadsignals.py b/Lib/test/test_threadsignals.py
index 9162c86..e0af31d 100644
--- a/Lib/test/test_threadsignals.py
+++ b/Lib/test/test_threadsignals.py
@@ -14,6 +14,10 @@
 process_pid = os.getpid()
 signalled_all=thread.allocate_lock()
 
+# Issue #11223: Locks are implemented using a mutex and a condition variable of
+# the pthread library on FreeBSD6. POSIX condition variables cannot be
+# interrupted by signals (see pthread_cond_wait manual page).
+USING_PTHREAD_COND = (sys.platform == 'freebsd6')
 
 def registerSignals(for_usr1, for_usr2, for_alrm):
     usr1 = signal.signal(signal.SIGUSR1, for_usr1)
@@ -70,10 +74,7 @@
     def alarm_interrupt(self, sig, frame):
         raise KeyboardInterrupt
 
-    # Issue #11223: Locks are implemented using a mutex and a condition
-    # variable of the pthread library on FreeBSD6. POSIX condition variables
-    # cannot be interrupted by signals (see pthread_cond_wait manual page).
-    @unittest.skipIf(sys.platform == 'freebsd6',
+    @unittest.skipIf(USING_PTHREAD_COND,
                      'POSIX condition variables cannot be interrupted')
     def test_lock_acquire_interruption(self):
         # Mimic receiving a SIGINT (KeyboardInterrupt) with SIGALRM while stuck
@@ -96,6 +97,8 @@
         finally:
             signal.signal(signal.SIGALRM, oldalrm)
 
+    @unittest.skipIf(USING_PTHREAD_COND,
+                     'POSIX condition variables cannot be interrupted')
     def test_rlock_acquire_interruption(self):
         # Mimic receiving a SIGINT (KeyboardInterrupt) with SIGALRM while stuck
         # in a deadlock.