diff --git a/backtracking/subset_sum.cpp b/backtracking/subset_sum.cpp
index 2a2a6641f..b9dee734b 100644
--- a/backtracking/subset_sum.cpp
+++ b/backtracking/subset_sum.cpp
@@ -91,7 +91,7 @@ static void test() {
     // Test 5
     std::cout << "5th test ";
     std::vector<int> array5 = {};
-    assert(backtracking::Subsets::subset_sum(6, array5) ==
+    assert(backtracking::subset_sum::subset_sum(6, array5) ==
            0);  // here we are expecting 0 subsets which sum up to 6 i.e. we
                 // cannot select anything from an empty array
     std::cout << "passed" << std::endl;