diff --git a/test/016_#f01_#draw_all.ref.log b/test/016_#f01_#draw_all.ref.log
index d68c0ba..6ba4a10 100644
--- a/test/016_#f01_#draw_all.ref.log
+++ b/test/016_#f01_#draw_all.ref.log
@@ -61,7 +61,7 @@ window_stack_value: 2
 process_name: OS
 memory_start: 0x00000000
 used_memory: 4294967295 (0xffffffff)
-pid: 8
+pid: 2
 box: 10 5 300 200
 slot_state: 0
 client_box: 5 24 290 171
diff --git a/test/020_#acpi_all.t b/test/020_#acpi_all.d
similarity index 100%
rename from test/020_#acpi_all.t
rename to test/020_#acpi_all.d
diff --git a/test/022_#net_#f74_all.t b/test/022_#net_#f74_all.d
similarity index 100%
rename from test/022_#net_#f74_all.t
rename to test/022_#net_#f74_all.d
diff --git a/test/023_#net_#f75_all.t b/test/023_#net_#f75_all.d
similarity index 100%
rename from test/023_#net_#f75_all.t
rename to test/023_#net_#f75_all.d
diff --git a/test/024_#net_#f76_all.t b/test/024_#net_#f76_all.d
similarity index 100%
rename from test/024_#net_#f76_all.t
rename to test/024_#net_#f76_all.d
diff --git a/umka.asm b/umka.asm
index 46ec2e2..20ba7e2 100644
--- a/umka.asm
+++ b/umka.asm
@@ -310,6 +310,7 @@ proc kos_init c uses ebx esi edi ebp
         mov     dword[TASK_COUNT], 2
         mov     dword[TASK_BASE], CURRENT_TASK + 2*sizeof.TASKDATA
         mov     [current_slot], SLOT_BASE+256*2
+        mov     [CURRENT_TASK + 2*sizeof.TASKDATA + TASKDATA.pid], 2
 
         call    set_window_defaults
         call    init_background