diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 0080ab7..17c6585 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -35,7 +35,7 @@ if(MSVC)
 	target_compile_options(unit-test-dssp PRIVATE /EHsc)
 endif()
 
-if(${Catch2_VERSION} VERSION_GREATER_EQUAL 3.0.0)
+if("${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)