diff --git a/target/alpha/helper.c b/target/alpha/helper.c
index 6c1703682e..10602fb339 100644
--- a/target/alpha/helper.c
+++ b/target/alpha/helper.c
@@ -71,7 +71,7 @@ void cpu_alpha_store_fpcr(CPUAlphaState *env, uint64_t val)
         env->fp_status.flush_inputs_to_zero = 1;
     }
     if (env->swcr & SWCR_MAP_UMZ) {
-        env->fp_status.flush_to_zero = 1;
+        env->fpcr_flush_to_zero = 1;
     }
     env->fpcr_exc_enable &= ~(alpha_ieee_swcr_to_fpcr(env->swcr) >> 32);
 #endif