diff --git a/drd/tests/Makefile.am b/drd/tests/Makefile.am
index e3366a18a..157bedcf4 100755
--- a/drd/tests/Makefile.am
+++ b/drd/tests/Makefile.am
@@ -418,7 +418,6 @@ check_PROGRAMS =      \
   pth_detached3       \
   pth_inconsistent_cond_wait \
   pth_mutex_reinit    \
-  pth_mutex_signal    \
   pth_process_shared_mutex   \
   recursive_mutex     \
   rwlock_race         \
@@ -503,6 +502,10 @@ if HAVE_PTHREAD_CREATE_GLIBC_2_0
 check_PROGRAMS += pth_create_glibc_2_0
 endif
 
+if !VGCONF_OS_IS_DARWIN
+check_PROGRAMS += pth_mutex_signal
+endif
+
 if HAVE_PTHREAD_SPINLOCK
 check_PROGRAMS += pth_spinlock
 endif