diff --git a/compiler-rt/test/tsan/test.h b/compiler-rt/test/tsan/test.h
index bb861b07745e..4e877f6d8dfd 100644
--- a/compiler-rt/test/tsan/test.h
+++ b/compiler-rt/test/tsan/test.h
@@ -11,10 +11,16 @@
 __typeof(pthread_barrier_wait) *barrier_wait;
 
 void barrier_init(pthread_barrier_t *barrier, unsigned count) {
+#if defined(__FreeBSD__)
+  static const char libpthread_name[] = "libpthread.so";
+#else
+  static const char libpthread_name[] = "libpthread.so.0";
+#endif
+
   if (barrier_wait == 0) {
-    void *h = dlopen("libpthread.so.0", RTLD_LAZY);
+    void *h = dlopen(libpthread_name, RTLD_LAZY);
     if (h == 0) {
-      fprintf(stderr, "failed to dlopen libpthread.so.0, exiting\n");
+      fprintf(stderr, "failed to dlopen %s, exiting\n", libpthread_name);
       exit(1);
     }
     barrier_wait = (__typeof(barrier_wait))dlsym(h, "pthread_barrier_wait");