diff --git a/ArmPkg/Drivers/CpuDxe/Exception.c b/ArmPkg/Drivers/CpuDxe/Exception.c
index eef76644f7..2f7e1b637f 100644
--- a/ArmPkg/Drivers/CpuDxe/Exception.c
+++ b/ArmPkg/Drivers/CpuDxe/Exception.c
@@ -129,6 +129,8 @@ InitializeExceptions (
   UINT32               *VectorBase;
 
   Status = EFI_SUCCESS;
+  ZeroMem (gExceptionHandlers,sizeof(*gExceptionHandlers));
+
   //
   // Disable interrupts
   //