diff --git a/system/services/acpi/acpi.zig b/system/services/acpi/acpi.zig
index 84e6a27..40f46f9 100644
--- a/system/services/acpi/acpi.zig
+++ b/system/services/acpi/acpi.zig
@@ -72,16 +72,16 @@ pub fn main(init: runtime.process.Init) void {
     const expected: ?usize = if (init.arguments.get(1)) |a| (std.fmt.parseInt(usize, a, 10) catch null) else null;
 
     const buffer = runtime.allocator().alloc(device.DeviceDescriptor, 64) catch {
-        _ = runtime.system.write("acpi: out of memory\n");
+        _ = runtime.system.write("system/services/acpi: out of memory\n");
         return;
     };
     const node = findTablesNode(buffer) orelse {
-        _ = runtime.system.write("acpi: no acpi-tables node to claim\n");
+        _ = runtime.system.write("system/services/acpi: no acpi-tables node to claim\n");
         return;
     };
     node_id = node.id;
     if (!device.claim(node_id)) {
-        _ = runtime.system.write("acpi: unable to claim acpi-tables\n");
+        _ = runtime.system.write("system/services/acpi: unable to claim acpi-tables\n");
         return;
     }
 
@@ -103,17 +103,17 @@ pub fn main(init: runtime.process.Init) void {
         if (block_count == blocks.len) break;
     }
     if (block_count == 0) {
-        _ = runtime.system.write("acpi: no AML blobs on the node\n");
+        _ = runtime.system.write("system/services/acpi: no AML blobs on the node\n");
         return;
     }
 
     const result = aml.parse(runtime.allocator(), blocks[0..block_count]) catch {
-        _ = runtime.system.write("acpi: AML parse failed\n");
+        _ = runtime.system.write("system/services/acpi: AML parse failed\n");
         return;
     };
     var namespace = result.namespace;
     const devices = aml.deviceCount(&namespace);
-    writeLine("acpi: parsed {d} AML blob(s), {d} namespace devices\n", .{ block_count, devices });
+    writeLine("system/services/acpi: parsed {d} AML blob(s), {d} namespace devices\n", .{ block_count, devices });
     if (expected) |want| {
         if (devices == want) {
             _ = runtime.system.write("acpi-parse: ok\n");
@@ -150,9 +150,9 @@ pub fn main(init: runtime.process.Init) void {
         const hid = entry.hid[0..entry.hid_len];
         const desc = acpi_ids.description(hid);
         if (desc.len != 0)
-            writeLine("acpi: reported {s} (device {d}, {d} resources) — {s}\n", .{ hid, entry.device_id, entry.resource_count, desc })
+            writeLine("system/services/acpi: reported {s} (device {d}, {d} resources) — {s}\n", .{ hid, entry.device_id, entry.resource_count, desc })
         else
-            writeLine("acpi: reported {s} (device {d}, {d} resources)\n", .{ hid, entry.device_id, entry.resource_count });
+            writeLine("system/services/acpi: reported {s} (device {d}, {d} resources)\n", .{ hid, entry.device_id, entry.resource_count });
         if (manager) |h| {
             var report = protocol.ChildAdded{
                 .parent = node_id,
@@ -165,7 +165,7 @@ pub fn main(init: runtime.process.Init) void {
             _ = runtime.ipc.call(h, std.mem.asBytes(&report), &reply) catch {};
         }
     }
-    writeLine("acpi: reported {d} device(s) to the manager\n", .{registered_count});
+    writeLine("system/services/acpi: reported {d} device(s) to the manager\n", .{registered_count});
 
     // Stay resident: the claim holds, and the service is here to grow into the
     // supervised discoverer (M20.3, then the M21 event side on the SCI).
@@ -207,7 +207,7 @@ fn registerDevice(node: *aml.Node, hid: [8]u8, interpreter: *aml.Interpreter) vo
     applyCrs(&descriptor, node, interpreter);
 
     const id = device.register(node_id, &descriptor) orelse {
-        writeLine("acpi: register refused for {s}\n", .{hid[0..@intCast(hid_len)]});
+        writeLine("system/services/acpi: register refused for {s}\n", .{hid[0..@intCast(hid_len)]});
         return;
     };
     registered[registered_count] = .{ .hid = hid, .hid_len = @intCast(hid_len), .device_id = id, .resource_count = descriptor.resource_count };