diff --git a/target/riscv/pmu.c b/target/riscv/pmu.c
index cf713663ee..0408f96e6a 100644
--- a/target/riscv/pmu.c
+++ b/target/riscv/pmu.c
@@ -390,7 +390,7 @@ int riscv_pmu_update_event_map(CPURISCVState *env, uint64_t value,
      * Expected mhpmevent value is zero for reset case. Remove the current
      * mapping.
      */
-    if (!value) {
+    if (!(value & MHPMEVENT_IDX_MASK)) {
         g_hash_table_foreach_remove(cpu->pmu_event_ctr_map,
                                     pmu_remove_event_map,
                                     GUINT_TO_POINTER(ctr_idx));