diff --git a/backtracking/n_queens.cpp b/backtracking/n_queens.cpp
index 6da8d8679..d879795ee 100644
--- a/backtracking/n_queens.cpp
+++ b/backtracking/n_queens.cpp
@@ -33,7 +33,7 @@ void printSolution(const std::array<std::array<int, n>, n> &board) {
   std::cout << "\n";
   for (int i = 0; i < n; i++) {
     for (int j = 0; j < n; j++) {
-      std::cout << "" << board[i][j];
+      std::cout << "" << board[i][j] << " ";
     }
     std::cout << "\n";
   }