diff --git a/examples/leo-bulk-send-example.cc b/examples/leo-bulk-send-example.cc
index 2ddf625..b8de4b1 100644
--- a/examples/leo-bulk-send-example.cc
+++ b/examples/leo-bulk-send-example.cc
@@ -84,7 +84,7 @@ int main (int argc, char *argv[])
 
   LeoOrbitNodeHelper orbit;
   NodeContainer satellites;
-  if (orbitFile.empty())
+  if (!orbitFile.empty())
     {
       satellites = orbit.Install (orbitFile);
     }
diff --git a/examples/leo-delay-tracing-example.cc b/examples/leo-delay-tracing-example.cc
index 97ea133..04555b8 100644
--- a/examples/leo-delay-tracing-example.cc
+++ b/examples/leo-delay-tracing-example.cc
@@ -136,7 +136,7 @@ int main (int argc, char *argv[])
 
   LeoOrbitNodeHelper orbit;
   NodeContainer satellites;
-  if (orbitFile.empty())
+  if (!orbitFile.empty())
     {
       satellites = orbit.Install (orbitFile);
     }