diff --git a/src/rrcas.cpp b/src/rrcas.cpp
index a8f0306..6f9b2c5 100644
--- a/src/rrcas.cpp
+++ b/src/rrcas.cpp
@@ -72,6 +72,7 @@ int main(int argc, char *argv[]) {
         }
     } catch (const std::exception &e) {
         std::cerr << "Exception: " << e.what() << "\n";
+        return 1;
     }