diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index bf5502d4d4..a3d245d1ae 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -1,6 +1,8 @@
 add_subdirectory(AK)
-add_subdirectory(Kernel)
-add_subdirectory(LibC)
+if ("${SERENITY_ARCH}" STREQUAL "i686")
+    add_subdirectory(Kernel)
+    add_subdirectory(LibC)
+endif()
 add_subdirectory(LibCompress)
 add_subdirectory(LibCore)
 add_subdirectory(LibCpp)