diff --git a/target-arm/helper.c b/target-arm/helper.c
index f0a1fd48e6..5080372bad 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -1983,6 +1983,7 @@ void register_cp_regs_for_features(ARMCPU *cpu)
         ARMCPRegInfo pmcr = {
             .name = "PMCR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 0,
             .access = PL0_RW, .resetvalue = cpu->midr & 0xff000000,
+            .type = ARM_CP_IO,
             .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcr),
             .accessfn = pmreg_access, .writefn = pmcr_write,
             .raw_writefn = raw_write,