diff --git a/arch/cortex-m/src/scb.rs b/arch/cortex-m/src/scb.rs
index 8107f16..a271db9 100644
--- a/arch/cortex-m/src/scb.rs
+++ b/arch/cortex-m/src/scb.rs
@@ -9,7 +9,7 @@ use kernel::common::StaticRef;
 struct ScbRegisters {
     cpuid: VolatileCell<u32>,
     icsr: VolatileCell<u32>,
-    vtor: VolatileCell<u32>,
+    vtor: VolatileCell<*const ()>,
     aircr: VolatileCell<u32>,
     scr: VolatileCell<u32>,
     ccr: VolatileCell<u32>,
@@ -54,3 +54,8 @@ pub unsafe fn reset() {
     let reset = (0x5FA << 16) | (aircr & (0x7 << 8)) | (1 << 2);
     SCB.aircr.set(reset);
 }
+
+/// relocate interrupt vector table
+pub unsafe fn set_vector_table_offset(offset: *const ()) {
+    SCB.vtor.set(offset);
+}