diff --git a/Kernel/Arch/aarch64/RegisterState.h b/Kernel/Arch/aarch64/RegisterState.h
index d518b68903..b10c01939b 100644
--- a/Kernel/Arch/aarch64/RegisterState.h
+++ b/Kernel/Arch/aarch64/RegisterState.h
@@ -6,5 +6,8 @@
 
 #pragma once
 
+struct RegisterState {
+};
+
 struct DebugRegisterState {
 };
diff --git a/Kernel/Arch/aarch64/dummy.cpp b/Kernel/Arch/aarch64/dummy.cpp
index 3ac7310e31..74264c2fa1 100644
--- a/Kernel/Arch/aarch64/dummy.cpp
+++ b/Kernel/Arch/aarch64/dummy.cpp
@@ -45,6 +45,7 @@ void dump_backtrace(PrintToScreen) { }
 
 // KString.cpp
 ErrorOr<NonnullOwnPtr<KString>> KString::try_create_uninitialized(size_t, char*&) { return ENOMEM; }
+ErrorOr<NonnullOwnPtr<KString>> KString::try_create(StringView) { return ENOMEM; }
 void KString::operator delete(void*) { }
 
 // SafeMem.h