diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 31c1480..3864d6d 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -32,12 +32,6 @@ if(MSVC)
 	target_compile_options(unit-test-dssp PRIVATE /EHsc)
 endif()
 
-if("${Catch2_VERSION}" VERSION_GREATER_EQUAL 3.0.0)
-	target_compile_definitions(unit-test-dssp PUBLIC CATCH22=0)
-else()
-	target_compile_definitions(unit-test-dssp PUBLIC CATCH22=1)
-endif()
-
 add_test(NAME unit-test-dssp COMMAND $<TARGET_FILE:unit-test-dssp>
 	--data-dir ${CMAKE_CURRENT_SOURCE_DIR}
 	--rsrc-dir ${CMAKE_CURRENT_BINARY_DIR}/_deps/cifpp-src/rsrc)