diff --git a/test/osx/CMakeLists.txt b/test/osx/CMakeLists.txt
index 03db0a2c1..dae2403e8 100644
--- a/test/osx/CMakeLists.txt
+++ b/test/osx/CMakeLists.txt
@@ -5,4 +5,6 @@ include_directories(${COCOA})
 
 link_libraries(libobs ${COCOA})
 
+add_definitions(-fobjc-arc)
+
 add_executable(test test.mm)