diff --git a/cpp/main.cpp b/cpp/main.cpp
index 93d0752e..7439315a 100644
--- a/cpp/main.cpp
+++ b/cpp/main.cpp
@@ -19,8 +19,7 @@
 #include "../src/graph_penalized_linear_model_cv_data.hpp"
 #include "../src/edgenet_gaussian_model_selection.hpp"
 
-static std::string netReg =
-  "\nnetReg - a network-regularized generalized regression model";
+static const char* netReg = "\nnetReg - a network-regularized generalized regression model";
 
 struct data_set
 {