diff --git a/libavfilter/riscv/af_afir_init.c b/libavfilter/riscv/af_afir_init.c
index 52aa18c126..66402f5c1b 100644
--- a/libavfilter/riscv/af_afir_init.c
+++ b/libavfilter/riscv/af_afir_init.c
@@ -34,7 +34,7 @@ av_cold void ff_afir_init_riscv(AudioFIRDSPContext *s)
     int flags = av_get_cpu_flags();
 
     if (flags & AV_CPU_FLAG_RVV_F64) {
-        if (flags & AV_CPU_FLAG_RVB_ADDR) {
+        if (flags & AV_CPU_FLAG_RVB) {
             s->fcmul_add = ff_fcmul_add_rvv;
         }
     }