diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 3caa670a18cb..b9e6337852dd 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -1246,7 +1246,7 @@ out_guest_err:
 
 static bool pkvm_install_ioguard_page(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
-	u32 retval = SMCCC_RET_SUCCESS;
+	u64 retval = SMCCC_RET_SUCCESS;
 	u64 ipa = smccc_get_arg1(vcpu);
 	int ret;