diff --git a/AK/Platform.h b/AK/Platform.h
index 0c60c11ff0..95c7d3fd58 100644
--- a/AK/Platform.h
+++ b/AK/Platform.h
@@ -126,15 +126,15 @@ extern "C" {
 #    define CLOCK_REALTIME_COARSE CLOCK_REALTIME
 #endif
 
-#ifndef SYSTEM_CACHE_ALIGNMENT_SIZE
+#ifndef AK_SYSTEM_CACHE_ALIGNMENT_SIZE
 #    if ARCH(AARCH64) || ARCH(x86_64)
-#        define SYSTEM_CACHE_ALIGNMENT_SIZE 64
+#        define AK_SYSTEM_CACHE_ALIGNMENT_SIZE 64
 #    else
-#        define SYSTEM_CACHE_ALIGNMENT_SIZE 128
+#        define AK_SYSTEM_CACHE_ALIGNMENT_SIZE 128
 #    endif
-#endif /* SYSTEM_CACHE_ALIGNMENT_SIZE */
+#endif /* AK_SYSTEM_CACHE_ALIGNMENT_SIZE */
 
-#ifdef CACHE_ALIGNED
-#    undef CACHE_ALIGNED
+#ifdef AK_CACHE_ALIGNED
+#    undef AK_CACHE_ALIGNED
 #endif
-#define CACHE_ALIGNED alignas(SYSTEM_CACHE_ALIGNMENT_SIZE)
+#define AK_CACHE_ALIGNED alignas(AK_SYSTEM_CACHE_ALIGNMENT_SIZE)
diff --git a/Userland/Libraries/LibCore/SharedCircularQueue.h b/Userland/Libraries/LibCore/SharedCircularQueue.h
index b863a60e5b..b507b4274a 100644
--- a/Userland/Libraries/LibCore/SharedCircularQueue.h
+++ b/Userland/Libraries/LibCore/SharedCircularQueue.h
@@ -168,9 +168,9 @@ private:
         // A full queue is signalled with:  head - 1 mod size = tail mod size  (i.e. head and tail point to the same index in the data array)
         // FIXME: These invariants aren't proven to be correct after each successful completion of each operation where it is relevant.
         //        The work could be put in but for now I think the algorithmic correctness proofs of the functions are enough.
-        CACHE_ALIGNED Atomic<size_t, AK::MemoryOrder::memory_order_seq_cst> m_tail { 0 };
-        CACHE_ALIGNED Atomic<size_t, AK::MemoryOrder::memory_order_seq_cst> m_head { 0 };
-        CACHE_ALIGNED Atomic<size_t, AK::MemoryOrder::memory_order_seq_cst> m_head_protector { NumericLimits<size_t>::max() };
+        AK_CACHE_ALIGNED Atomic<size_t, AK::MemoryOrder::memory_order_seq_cst> m_tail { 0 };
+        AK_CACHE_ALIGNED Atomic<size_t, AK::MemoryOrder::memory_order_seq_cst> m_head { 0 };
+        AK_CACHE_ALIGNED Atomic<size_t, AK::MemoryOrder::memory_order_seq_cst> m_head_protector { NumericLimits<size_t>::max() };
 
         alignas(ValueType) Array<ValueType, Size> m_data;
     };