diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index 6cf9355b99..94ff2a1584 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -468,7 +468,8 @@ static void create_fdt_socket_plic(RISCVVirtState *s,
         plic_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 4);
     qemu_fdt_setprop_cells(mc->fdt, plic_name, "reg",
         0x0, plic_addr, 0x0, memmap[VIRT_PLIC].size);
-    qemu_fdt_setprop_cell(mc->fdt, plic_name, "riscv,ndev", VIRTIO_NDEV);
+    qemu_fdt_setprop_cell(mc->fdt, plic_name, "riscv,ndev",
+                          VIRT_IRQCHIP_NUM_SOURCES - 1);
     riscv_socket_fdt_write_id(mc, mc->fdt, plic_name, socket);
     qemu_fdt_setprop_cell(mc->fdt, plic_name, "phandle",
         plic_phandles[socket]);
diff --git a/include/hw/riscv/virt.h b/include/hw/riscv/virt.h
index 62513e075c..e1ce0048af 100644
--- a/include/hw/riscv/virt.h
+++ b/include/hw/riscv/virt.h
@@ -87,14 +87,13 @@ enum {
     VIRTIO_IRQ = 1, /* 1 to 8 */
     VIRTIO_COUNT = 8,
     PCIE_IRQ = 0x20, /* 32 to 35 */
-    VIRT_PLATFORM_BUS_IRQ = 64, /* 64 to 96 */
-    VIRTIO_NDEV = 96 /* Arbitrary maximum number of interrupts */
+    VIRT_PLATFORM_BUS_IRQ = 64, /* 64 to 95 */
 };
 
 #define VIRT_PLATFORM_BUS_NUM_IRQS 32
 
 #define VIRT_IRQCHIP_NUM_MSIS 255
-#define VIRT_IRQCHIP_NUM_SOURCES VIRTIO_NDEV
+#define VIRT_IRQCHIP_NUM_SOURCES 96
 #define VIRT_IRQCHIP_NUM_PRIO_BITS 3
 #define VIRT_IRQCHIP_MAX_GUESTS_BITS 3
 #define VIRT_IRQCHIP_MAX_GUESTS ((1U << VIRT_IRQCHIP_MAX_GUESTS_BITS) - 1U)