diff --git a/target/arm/helper.c b/target/arm/helper.c
index 8847f5b90a..7461d4091e 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -5409,7 +5409,7 @@ static const ARMCPRegInfo el2_cp_reginfo[] = {
       .cp = 15, .opc1 = 4, .crn = 2, .crm = 1, .opc2 = 2,
       .type = ARM_CP_ALIAS,
       .access = PL2_RW, .accessfn = access_el3_aa32ns,
-      .fieldoffset = offsetof(CPUARMState, cp15.vtcr_el2) },
+      .fieldoffset = offsetoflow32(CPUARMState, cp15.vtcr_el2) },
     { .name = "VTCR_EL2", .state = ARM_CP_STATE_AA64,
       .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 1, .opc2 = 2,
       .access = PL2_RW,