diff --git a/src/traffic-control/examples/adaptive-red-tests.cc b/src/traffic-control/examples/adaptive-red-tests.cc
index bf6aadcb8..1bf86d57b 100644
--- a/src/traffic-control/examples/adaptive-red-tests.cc
+++ b/src/traffic-control/examples/adaptive-red-tests.cc
@@ -486,13 +486,13 @@ main (int argc, char *argv[])
       if (st.unforcedDrop > st.forcedDrop)
         {
           std::cout << "Drops due to prob mark should be less than the drops due to hard mark" << std::endl;
-          exit (-1);
+          exit (1);
         }
 
       if (st.qLimDrop == 0)
         {
           std::cout << "There should be some drops due to queue full" << std::endl;
-          exit (-1);
+          exit (1);
         }
     }
   else if (aredTest == 6 || aredTest == 7 || aredTest == 8 || aredTest == 9 || aredTest == 10 || aredTest == 14 || aredTest ==15)
@@ -500,13 +500,13 @@ main (int argc, char *argv[])
       if (st.unforcedDrop > st.forcedDrop)
         {
           std::cout << "Drops due to prob mark should be less than the drops due to hard mark" << std::endl;
-          exit (-1);
+          exit (1);
         }
 
       if (st.qLimDrop != 0)
         {
           std::cout << "There should be zero drops due to queue full" << std::endl;
-          exit (-1);
+          exit (1);
         }
     }
   else if (aredTest == 12)
@@ -514,13 +514,13 @@ main (int argc, char *argv[])
       if (st.unforcedDrop < st.forcedDrop)
         {
           std::cout << "Drops due to prob mark should be more than the drops due to hard mark" << std::endl;
-          exit (-1);
+          exit (1);
         }
 
       if (st.qLimDrop != 0)
         {
           std::cout << "There should be zero drops due to queue full" << std::endl;
-          exit (-1);
+          exit (1);
         }
     }
 
diff --git a/src/traffic-control/examples/pie-example.cc b/src/traffic-control/examples/pie-example.cc
index 3fd314bf6..d5d02be17 100644
--- a/src/traffic-control/examples/pie-example.cc
+++ b/src/traffic-control/examples/pie-example.cc
@@ -309,7 +309,7 @@ main (int argc, char *argv[])
   if (st.forcedDrop != 0)
     {
       std::cout << "There should be no drops due to queue full." << std::endl;
-      exit (-1);
+      exit (1);
     }
 
   if (flowMonitor)
diff --git a/src/traffic-control/examples/red-vs-ared.cc b/src/traffic-control/examples/red-vs-ared.cc
index 4670db07e..57a7887e0 100644
--- a/src/traffic-control/examples/red-vs-ared.cc
+++ b/src/traffic-control/examples/red-vs-ared.cc
@@ -173,13 +173,13 @@ int main (int argc, char *argv[])
       if (st.unforcedDrop > st.forcedDrop)
         {
           std::cout << "Drops due to prob mark should be less than the drops due to hard mark" << std::endl;
-          exit (-1);
+          exit (1);
         }
 
       if (st.qLimDrop != 0)
         {
           std::cout << "There should be zero drops due to queue full" << std::endl;
-          exit (-1);
+          exit (1);
         }
     }
   else if (queueDiscType == "ARED")
@@ -187,13 +187,13 @@ int main (int argc, char *argv[])
       if (st.unforcedDrop < st.forcedDrop)
         {
           std::cout << "Drops due to prob mark should be more than the drops due to hard mark" << std::endl;
-          exit (-1);
+          exit (1);
         }
 
       if (st.qLimDrop != 0)
         {
           std::cout << "There should be zero drops due to queue full" << std::endl;
-          exit (-1);
+          exit (1);
         }
     }