diff --git a/examples/ISAM2_SmartFactorStereo_IMU.cpp b/examples/ISAM2_SmartFactorStereo_IMU.cpp
index 43be2bd4d..e376cfcff 100644
--- a/examples/ISAM2_SmartFactorStereo_IMU.cpp
+++ b/examples/ISAM2_SmartFactorStereo_IMU.cpp
@@ -96,7 +96,7 @@ struct IMUHelper {
 
 int main(int argc, char* argv[]) {
   if (argc != 2) {
-    cout << "./main [data.txt]\n";
+    cout << "./ISAM2_SmartFactorStereo_IMU [data.txt]\n";
     return 0;
   }