diff --git a/CMakeLists.txt b/CMakeLists.txt
index e9c4507..3c183c5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,7 +10,7 @@ set(CMAKE_CXX_STANDARD 20)
 project("apriltag")
 
 if(NOT DEFINED ARCH)
-    if(DEFINED CMAKE_OSX_ARCHITECTURES AND NOT "${CMAKE_OSX_ARCHITECTURES}" STREQUAL ""))
+    if(DEFINED CMAKE_OSX_ARCHITECTURES AND NOT "${CMAKE_OSX_ARCHITECTURES}" STREQUAL "")
 	set(ARCH ${CMAKE_OSX_ARCHITECTURES})
     else()
     	set(ARCH ${CMAKE_SYSTEM_PROCESSOR})