diff --git a/tests/test_cu.cpp b/tests/test_cu.cpp
index 88f2d8a..3dfa474 100644
--- a/tests/test_cu.cpp
+++ b/tests/test_cu.cpp
@@ -3,7 +3,6 @@
 #include <iostream>
 #include <string>
 
-#define CATCH_CONFIG_MAIN
 #include <catch2/catch_test_macros.hpp>
 #include <cudawrappers/cu.hpp>
 
diff --git a/tests/test_cufft.cpp b/tests/test_cufft.cpp
index 8a6353e..5221f1f 100644
--- a/tests/test_cufft.cpp
+++ b/tests/test_cufft.cpp
@@ -1,7 +1,6 @@
 #include <fstream>
 #include <iostream>
 
-#define CATCH_CONFIG_MAIN
 #include <catch2/catch_test_macros.hpp>
 #include <catch2/matchers/catch_matchers_floating_point.hpp>
 #include <cudawrappers/cufft.hpp>
diff --git a/tests/test_nvml.cpp b/tests/test_nvml.cpp
index 558147d..98f2bf9 100644
--- a/tests/test_nvml.cpp
+++ b/tests/test_nvml.cpp
@@ -1,7 +1,6 @@
 #include <string>
 #include <vector>
 
-#define CATCH_CONFIG_MAIN
 #include <catch2/catch_test_macros.hpp>
 #include <cudawrappers/cu.hpp>
 #include <cudawrappers/nvml.hpp>
diff --git a/tests/test_nvrtc.cpp b/tests/test_nvrtc.cpp
index 9971469..d778c22 100644
--- a/tests/test_nvrtc.cpp
+++ b/tests/test_nvrtc.cpp
@@ -1,7 +1,6 @@
 #include <string>
 #include <vector>
 
-#define CATCH_CONFIG_MAIN
 #include <catch2/catch_test_macros.hpp>
 #include <cudawrappers/nvrtc.hpp>
 
diff --git a/tests/test_vector_add.cpp b/tests/test_vector_add.cpp
index 7fd991b..2212511 100644
--- a/tests/test_vector_add.cpp
+++ b/tests/test_vector_add.cpp
@@ -3,7 +3,6 @@
 #include <string>
 #include <vector>
 
-#define CATCH_CONFIG_MAIN
 #include <catch2/catch_test_macros.hpp>
 #include <catch2/catch_approx.hpp>
 #include <cudawrappers/cu.hpp>