diff --git a/Kernel/Arch/aarch64/Processor.h b/Kernel/Arch/aarch64/Processor.h
index 5a3d974a6e..1974798bfd 100644
--- a/Kernel/Arch/aarch64/Processor.h
+++ b/Kernel/Arch/aarch64/Processor.h
@@ -35,6 +35,8 @@ struct [[gnu::aligned(16)]] FPUState
 // FIXME: Remove this once we support SMP in aarch64
 extern Processor* g_current_processor;
 
+constexpr size_t MAX_CPU_COUNT = 1;
+
 class Processor {
     void* m_processor_specific_data[static_cast<size_t>(ProcessorSpecificDataID::__Count)];
 
diff --git a/Kernel/Arch/x86/Processor.h b/Kernel/Arch/x86/Processor.h
index 64209ffbad..e2c7db936e 100644
--- a/Kernel/Arch/x86/Processor.h
+++ b/Kernel/Arch/x86/Processor.h
@@ -61,7 +61,9 @@ struct [[gnu::aligned(64), gnu::packed]] FPUState
 class Processor;
 // Note: We only support 64 processors at most at the moment,
 // so allocate 64 slots of inline capacity in the container.
-using ProcessorContainer = Array<Processor*, 64>;
+
+constexpr size_t MAX_CPU_COUNT = 64;
+using ProcessorContainer = Array<Processor*, MAX_CPU_COUNT>;
 
 class Processor {
     friend class ProcessorInfo;