diff --git a/qemu/target/mips/helper.c b/qemu/target/mips/helper.c
index 85762f5b..f4679c2c 100644
--- a/qemu/target/mips/helper.c
+++ b/qemu/target/mips/helper.c
@@ -617,6 +617,8 @@ void mips_cpu_do_interrupt(CPUState *cs)
         goto set_DEPC;
     case EXCP_DBp:
         env->CP0_Debug |= 1 << CP0DB_DBp;
+        /* Setup DExcCode - SDBBP instruction */
+        env->CP0_Debug = (env->CP0_Debug & ~(0x1fULL << CP0DB_DEC)) | 9 << CP0DB_DEC;
         goto set_DEPC;
     case EXCP_DDBS:
         env->CP0_Debug |= 1 << CP0DB_DDBS;