diff --git a/src/btop_menu.cpp b/src/btop_menu.cpp
index 3d721a8..6a47e29 100644
--- a/src/btop_menu.cpp
+++ b/src/btop_menu.cpp
@@ -798,7 +798,7 @@ namespace Menu {
 	};
 
 	msgBox::msgBox() {}
-	msgBox::msgBox(int width, int boxtype, vector<string> content, string title)
+	msgBox::msgBox(int width, int boxtype, const vector<string>& content, string title)
 	: width(width), boxtype(boxtype) {
 		auto tty_mode = Config::getB("tty_mode");
 		auto rounded = Config::getB("rounded_corners");
diff --git a/src/btop_menu.hpp b/src/btop_menu.hpp
index 63974e4..3b02837 100644
--- a/src/btop_menu.hpp
+++ b/src/btop_menu.hpp
@@ -61,7 +61,7 @@ namespace Menu {
 			Select
 		};
 		msgBox();
-		msgBox(int width, int boxtype, vector<string> content, string title);
+		msgBox(int width, int boxtype, const vector<string>& content, string title);
 
 		//? Draw and return box as a string
 		string operator()();