diff --git a/hw/nios2/boot.c b/hw/nios2/boot.c
index 46b8349876..88224aa84c 100644
--- a/hw/nios2/boot.c
+++ b/hw/nios2/boot.c
@@ -109,6 +109,7 @@ static int nios2_load_dtb(struct nios2_boot_info bi, const uint32_t ramsize,
     }
 
     cpu_physical_memory_write(bi.fdt, fdt, fdt_size);
+    g_free(fdt);
     return fdt_size;
 }