diff --git a/components/bt/hli_vectors.S b/components/bt/hli_vectors.S
index 11655ac15f..7d612c7250 100644
--- a/components/bt/hli_vectors.S
+++ b/components/bt/hli_vectors.S
@@ -39,11 +39,6 @@ _l4_save_ctx:
     .type       xt_highint4,@function
     .align      4
 xt_highint4:
-    /* disable exception mode, window overflow */
-    movi    a0, PS_INTLEVEL(5) | PS_EXCM  /*TOCHECK*/
-    wsr     a0, PS
-    rsync
-
     movi    a0, _l4_save_ctx
     /* save 4 lower registers */
     s32i    a1, a0, 4
@@ -69,6 +64,11 @@ xt_highint4:
     rsr     a2, EPC1
     s32i    a2, a0, 24
 
+    /* disable exception mode, window overflow */
+    movi    a0, PS_INTLEVEL(5) | PS_EXCM  /*TOCHECK*/
+    wsr     a0, PS
+    rsync
+
     /* Save the remaining physical registers.
      * 4 registers are already saved, which leaves 60 registers to save.
      * (FIXME: consider the case when the CPU is configured with physical 32 registers)