diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index e1ecf79551..9b648540e6 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -552,6 +552,7 @@ static void create_fdt_one_imsic(RISCVVirtState *s, hwaddr base_addr,
                           FDT_IMSIC_INT_CELLS);
     qemu_fdt_setprop(ms->fdt, imsic_name, "interrupt-controller", NULL, 0);
     qemu_fdt_setprop(ms->fdt, imsic_name, "msi-controller", NULL, 0);
+    qemu_fdt_setprop_cell(ms->fdt, imsic_name, "#msi-cells", 0);
     qemu_fdt_setprop(ms->fdt, imsic_name, "interrupts-extended",
                      imsic_cells, ms->smp.cpus * sizeof(uint32_t) * 2);
     qemu_fdt_setprop(ms->fdt, imsic_name, "reg", imsic_regs,