diff --git a/tools/debugger/gdbsx/xg/xg_main.c b/tools/debugger/gdbsx/xg/xg_main.c
index 5736b8689f..0622ebd6d2 100644
--- a/tools/debugger/gdbsx/xg/xg_main.c
+++ b/tools/debugger/gdbsx/xg/xg_main.c
@@ -821,3 +821,11 @@ xg_write_mem(uint64_t guestva, char *frombuf, int buflen, uint64_t pgd3val)
     return iop->remain;
 }
 
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/arch/x86/debug.c b/xen/arch/x86/debug.c
index 3e21ca8170..a67a1926a5 100644
--- a/xen/arch/x86/debug.c
+++ b/xen/arch/x86/debug.c
@@ -223,3 +223,11 @@ dbg_rw_mem(dbgva_t addr, dbgbyte_t *buf, int len, domid_t domid, int toaddr,
     return len;
 }
 
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */