diff --git a/src/mlpack/tests/main_tests/adaboost_test.cpp b/src/mlpack/tests/main_tests/adaboost_test.cpp
index 1c6075201f..2f8d37fc6f 100644
--- a/src/mlpack/tests/main_tests/adaboost_test.cpp
+++ b/src/mlpack/tests/main_tests/adaboost_test.cpp
@@ -267,7 +267,7 @@ BOOST_AUTO_TEST_CASE(AdaBoostDiffWeakLearnerOutputTest)
   {
     if (output[i] != outputPerceptron[i])
     {
-      int flag = 1;
+      flag = 1;
       break;
     }
   }