diff --git a/src/OpenMesh/Core/Utils/RandomNumberGenerator.cc b/src/OpenMesh/Core/Utils/RandomNumberGenerator.cc
index 8e3d78be..3e7c33ad 100644
--- a/src/OpenMesh/Core/Utils/RandomNumberGenerator.cc
+++ b/src/OpenMesh/Core/Utils/RandomNumberGenerator.cc
@@ -66,7 +66,7 @@ namespace OpenMesh {
 RandomNumberGenerator::RandomNumberGenerator(const double _resolution) :
   resolution_(_resolution),
   iterations_(1),
-  maxNum_(RAND_MAX)
+  maxNum_(RAND_MAX + 1.0)
 {
   double tmp = resolution_;
   while (tmp > (double(RAND_MAX) + 1.0) ) {
diff --git a/src/Unittests/unittests_randomNumberGenerator.hh b/src/Unittests/unittests_randomNumberGenerator.hh
index 9ba0bc96..31171541 100644
--- a/src/Unittests/unittests_randomNumberGenerator.hh
+++ b/src/Unittests/unittests_randomNumberGenerator.hh
@@ -53,8 +53,8 @@ TEST_F(RandomNumberGenerator, RandomNumberGeneratorMaxTestHighres) {
 
   average /= 100000000.0;
 
- // EXPECT_EQ(0u, lowerZero ) << "Below zero!";
- // EXPECT_EQ(0u, above1 ) << "Above zero!";
+  EXPECT_EQ(0u, lowerZero ) << "Below zero!";
+  EXPECT_EQ(0u, above1 ) << "Above zero!";
 
   EXPECT_TRUE( (average - 0.5) < 0.01 ) << "Expected value not 0.5";
 }
@@ -76,8 +76,6 @@ TEST_F(RandomNumberGenerator, RandomNumberGeneratorMaxTestLowres) {
 
      if ( randomNumber > 1.0  ) {
        above1++;
-       std::cerr << "randomNumber " << randomNumber << std::endl;
-       std::cerr << "resolution   " << rng.resolution() << std::endl;
      }
 
      average += randomNumber;
@@ -85,8 +83,8 @@ TEST_F(RandomNumberGenerator, RandomNumberGeneratorMaxTestLowres) {
 
   average /= 10000000.0;
 
- // EXPECT_EQ(0u, lowerZero ) << "Below zero!";
- // EXPECT_EQ(0u, above1 ) << "Above zero!";
+  EXPECT_EQ(0u, lowerZero ) << "Below zero!";
+  EXPECT_EQ(0u, above1 ) << "Above zero!";
 
   EXPECT_TRUE( (average - 0.5) < 0.01 ) << "Expected value not 0.5";
 }