diff --git a/AI/Nullkiller/CMakeLists.txt b/AI/Nullkiller/CMakeLists.txt
index 0ccf0a281..39d4adee0 100644
--- a/AI/Nullkiller/CMakeLists.txt
+++ b/AI/Nullkiller/CMakeLists.txt
@@ -127,6 +127,12 @@ if(ANDROID) # android compiles ai libs into main lib directly, so we skip this l
 endif()
 
 add_library(Nullkiller SHARED ${Nullkiller_SRCS} ${Nullkiller_HEADERS})
+if(APPLE_IOS)
+	# Nullkiller dependencies - TBB and LuaJIT - can only be built for 64-bit
+	set_target_properties(Nullkiller PROPERTIES
+		XCODE_ATTRIBUTE_EXCLUDED_ARCHS "$(ARCHS_STANDARD_32_BIT)"
+	)
+endif()
 
 target_include_directories(Nullkiller PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})