diff --git a/target/riscv/gdbstub.c b/target/riscv/gdbstub.c
index be7a02cd90..d0cc5762c2 100644
--- a/target/riscv/gdbstub.c
+++ b/target/riscv/gdbstub.c
@@ -338,7 +338,7 @@ void riscv_cpu_register_gdb_regs_for_features(CPUState *cs)
                                  gdb_find_static_feature("riscv-32bit-fpu.xml"),
                                  0);
     }
-    if (env->misa_ext & RVV) {
+    if (cpu->cfg.ext_zve32x) {
         gdb_register_coprocessor(cs, riscv_gdb_get_vector,
                                  riscv_gdb_set_vector,
                                  ricsv_gen_dynamic_vector_feature(cs, cs->gdb_num_regs),