diff --git a/interrupt/init.c b/interrupt/init.c
index 903c3e9..48a1945 100644
--- a/interrupt/init.c
+++ b/interrupt/init.c
@@ -6,8 +6,7 @@
 #include "../runtime/panic_assert.h"
 #include "testcode.h"
 
-interrupt_DescriptorTableReference *interrupt_IDTR, *interrupt_GDTR;
-bool                                interrupt_Enabled;
+bool interrupt_Enabled;
 
 
 /*
diff --git a/interrupt/interrupt.h b/interrupt/interrupt.h
index 7f2e5d3..2fa2d36 100644
--- a/interrupt/interrupt.h
+++ b/interrupt/interrupt.h
@@ -33,8 +33,7 @@ typedef struct {
 	uint16_t length;
 	void *   base;
 } PACKED interrupt_DescriptorTableReference;
-// address of IDTR and GDTR, allocated by kMalloc() and is never freed
-extern interrupt_DescriptorTableReference *interrupt_IDTR, *interrupt_GDTR;
+
 
 // true if Init() has been called and interrupt handling is on
 extern bool interrupt_Enabled;