diff --git a/util/env_test.cc b/util/env_test.cc
index 3511d985b1baecfec129464e666a1836e5aa580f..351f6358a2cdc46d7251d147c6d40aa26aecb067 100644
--- a/util/env_test.cc
+++ b/util/env_test.cc
@@ -141,8 +141,6 @@ TEST(EnvPosixTest, TwoPools) {
       {
         MutexLock l(&mu_);
         num_running_++;
-        std::cout << "Pool " << pool_name_ << ": "
-                  << num_running_ << " running threads.\n";
         // make sure we don't have more than pool_size_ jobs running.
         ASSERT_LE(num_running_, pool_size_.load());
       }