diff --git a/target/riscv/pmp.c b/target/riscv/pmp.c
index fed1c3c0301b..e0fe2064074a 100644
--- a/target/riscv/pmp.c
+++ b/target/riscv/pmp.c
@@ -245,7 +245,7 @@ bool pmp_hart_has_privs(CPURISCVState *env, target_ulong addr,
          from low to high */
     for (i = 0; i < MAX_RISCV_PMPS; i++) {
         s = pmp_is_in_range(env, i, addr);
-        e = pmp_is_in_range(env, i, addr + size);
+        e = pmp_is_in_range(env, i, addr + size - 1);
 
         /* partially inside */
         if ((s + e) == 1) {