diff --git a/xtoskrnl/ar/amd64/procsup.c b/xtoskrnl/ar/amd64/procsup.c
index 3053c08..79f7e55 100644
--- a/xtoskrnl/ar/amd64/procsup.c
+++ b/xtoskrnl/ar/amd64/procsup.c
@@ -85,6 +85,7 @@ XTAPI
 VOID
 ArpIdentifyProcessor(VOID)
 {
+    UNIMPLEMENTED;
 }
 
 /**
diff --git a/xtoskrnl/ar/i686/procsup.c b/xtoskrnl/ar/i686/procsup.c
index e3e8731..8242cce 100644
--- a/xtoskrnl/ar/i686/procsup.c
+++ b/xtoskrnl/ar/i686/procsup.c
@@ -83,6 +83,7 @@ XTAPI
 VOID
 ArpIdentifyProcessor(VOID)
 {
+    UNIMPLEMENTED;
 }
 
 /**