diff --git a/Sources/ArgumentParser/CMakeLists.txt b/Sources/ArgumentParser/CMakeLists.txt
index 220419be..0e1279f7 100644
--- a/Sources/ArgumentParser/CMakeLists.txt
+++ b/Sources/ArgumentParser/CMakeLists.txt
@@ -50,7 +50,7 @@ add_library(ArgumentParser
 set_target_properties(ArgumentParser PROPERTIES
   INTERFACE_INCLUDE_DIRECTORIES ${CMAKE_Swift_MODULE_DIRECTORY})
 target_compile_options(ArgumentParser PRIVATE
-  $<$<BOOL:${BUILD_TESTING}>:-enable-testing>)
+  $<$<BOOL:${BUILD_TESTING}>:-enable-testing> -enable-library-evolution)
 target_link_libraries(ArgumentParser PRIVATE
   $<$<NOT:$<PLATFORM_ID:Darwin>>:Foundation>
   ArgumentParserToolInfo)