diff --git a/src/core/model/test.cc b/src/core/model/test.cc
index 30fe7bade..24cbdab22 100644
--- a/src/core/model/test.cc
+++ b/src/core/model/test.cc
@@ -547,7 +547,7 @@ TestRunnerImpl::PrintReport (TestCase *test, std::ostream *os, bool xml, int lev
   double user = test->m_result->clock.GetElapsedUser () / MS_PER_SEC;
   double system = test->m_result->clock.GetElapsedSystem () / MS_PER_SEC;
 
-  (*os).precision (3);
+  std::streamsize oldPrecision = (*os).precision (3);
   *os << std::fixed;
 
   std::string statusString = test->IsFailed ()?"FAIL":"PASS";
@@ -604,7 +604,8 @@ TestRunnerImpl::PrintReport (TestCase *test, std::ostream *os, bool xml, int lev
         }
     }
 
-  os->unsetf(std::ios_base::floatfield);
+  (*os).unsetf(std::ios_base::floatfield);
+  (*os).precision (oldPrecision);
 }
   
 void
diff --git a/src/spectrum/test/spectrum-ideal-phy-test.cc b/src/spectrum/test/spectrum-ideal-phy-test.cc
index a3a30d4ce..0cb90c938 100644
--- a/src/spectrum/test/spectrum-ideal-phy-test.cc
+++ b/src/spectrum/test/spectrum-ideal-phy-test.cc
@@ -194,6 +194,8 @@ SpectrumIdealPhyTestCase::DoRun (void)
   Simulator::Run ();
   double throughputBps = (g_rxBytes * 8.0) / testDuration;
 
+  std::clog.unsetf(std::ios_base::floatfield);
+  
   if (m_rateIsAchievable)
     {
       NS_TEST_ASSERT_MSG_EQ_TOL (throughputBps, m_phyRate, m_phyRate*0.01, "throughput does not match PHY rate");
@@ -203,7 +205,6 @@ SpectrumIdealPhyTestCase::DoRun (void)
       NS_TEST_ASSERT_MSG_EQ (throughputBps, 0.0, "PHY rate is not achievable but throughput is non-zero");    
     }
 
-  std::clog.unsetf(std::ios_base::floatfield);
   Simulator::Destroy ();
 }
 
diff --git a/src/wifi/model/ctrl-headers.cc b/src/wifi/model/ctrl-headers.cc
index 9d9efe1d9..bd37fc699 100644
--- a/src/wifi/model/ctrl-headers.cc
+++ b/src/wifi/model/ctrl-headers.cc
@@ -314,7 +314,7 @@ void
 CtrlBAckResponseHeader::Print (std::ostream &os) const
 {
   NS_LOG_FUNCTION (this << &os);
-  os << "TID_INFO=" << m_tidInfo << ", StartingSeq=" << std::hex << m_startingSeq;
+  os << "TID_INFO=" << m_tidInfo << ", StartingSeq=" << std::hex << m_startingSeq << std::dec;
 }
 
 uint32_t