diff --git a/kernel/trunk/core/syscall.inc b/kernel/trunk/core/syscall.inc
index cb3b9b2394..8ae056bdea 100644
--- a/kernel/trunk/core/syscall.inc
+++ b/kernel/trunk/core/syscall.inc
@@ -141,7 +141,7 @@ iglobal
       dd 0
       dd 0
       dd readmousepos		 ; 37-GetMousePosition_ScreenRelative,.
-      dd syscall_drawline	 ; 38-DrawLine
+      dd 0			 ; 38-DrawLine
       dd sys_getbackground	 ; 39-GetBackgroundSize,ReadBgrData,.
       dd 0
       dd 0
@@ -221,7 +221,7 @@ iglobal
       dd syscall_getpixel	 ; 35-GetPixel
       dd undefined_syscall	 ; 36-reserved
       dd cross_order		 ; 37-GetMousePosition_ScreenRelative,.
-      dd cross_order		 ; 38-DrawLine
+      dd syscall_drawline	 ; 38-DrawLine
       dd cross_order		 ; 39-GetBackgroundSize,ReadBgrData,.
       dd set_app_param		 ; 40-WantEvents
       dd syscall_getirqowner	 ; 41-GetIrqOwner
diff --git a/kernel/trunk/kernel.asm b/kernel/trunk/kernel.asm
index f024cc23ca..b79ccc4921 100644
--- a/kernel/trunk/kernel.asm
+++ b/kernel/trunk/kernel.asm
@@ -5077,22 +5077,23 @@ align 4
 syscall_drawline:			; DrawLine
 
 	mov	edi, [TASK_BASE]
-	movzx	edx, word[edi-twdw+WDATA.box.left]
-	mov	ebp, edx
+	movzx	eax, word[edi-twdw+WDATA.box.left]
+	mov	ebp, eax
 	mov	esi, [current_slot]
 	add	ebp, [esi+APPDATA.wnd_clientbox.left]
-	add	dx, word[esi+APPDATA.wnd_clientbox.left]
-	shl	edx, 16
-	add	ebp, edx
-	movzx	edx, word[edi-twdw+WDATA.box.top]
+	add	ax, word[esi+APPDATA.wnd_clientbox.left]
+	add	ebp,ebx
+	shl	eax, 16
+	movzx	ebx, word[edi-twdw+WDATA.box.top]
 	add	eax, ebp
-	mov	ebp, edx
+	mov	ebp, ebx
 	add	ebp, [esi+APPDATA.wnd_clientbox.top]
-	add	dx, word[esi+APPDATA.wnd_clientbox.top]
-	shl	edx, 16
+	add	bx, word[esi+APPDATA.wnd_clientbox.top]
+	add     ebp, ecx
+	shl	ebx, 16
 	xor	edi, edi
-	add	edx, ebp
-	add	ebx, edx
+	add	ebx, ebp
+	mov	ecx, edx
 	jmp	[draw_line]
 
 align 4