diff --git a/src/gui/widget.c b/src/gui/widget.c
index cfecb9736..5d77b864b 100644
--- a/src/gui/widget.c
+++ b/src/gui/widget.c
@@ -208,7 +208,7 @@ void GUI_Widget_Draw(Widget *w)
 		} break;
 
 		case DRAW_MODE_UNKNOWN3: {
-			GFX_DrawSprite(drawParam.unknown, positionLeft, positionTop, HOUSE_HARKONNEN);
+			GFX_DrawSprite(drawParam.spriteID, positionLeft, positionTop, HOUSE_HARKONNEN);
 		} break;
 
 		case DRAW_MODE_CUSTOM_PROC: {
@@ -595,9 +595,9 @@ Widget *GUI_Widget_Allocate(uint16 index, uint16 shortcut, uint16 offsetX, uint1
 			break;
 
 		case 3:
-			drawMode           = DRAW_MODE_NONE;
-			drawParam1.unknown = 0;
-			drawParam2.unknown = 0;
+			drawMode            = DRAW_MODE_NONE;
+			drawParam1.spriteID = 0;
+			drawParam2.spriteID = 0;
 			break;
 
 		default:
diff --git a/src/gui/widget.h b/src/gui/widget.h
index adb8f3892..1c603a2df 100644
--- a/src/gui/widget.h
+++ b/src/gui/widget.h
@@ -52,7 +52,7 @@ struct Widget;
  * The parameter for a given DrawMode.
  */
 typedef union WidgetDrawParameter {
-	uint16 unknown;                                         /*!< Parameter for DRAW_MODE_UNKNOWN3. */
+	uint16 spriteID;                                        /*!< Parameter for DRAW_MODE_UNKNOWN3. */
 	void *sprite;                                           /*!< Parameter for DRAW_MODE_SPRITE. */
 	char *text;                                             /*!< Parameter for DRAW_MODE_TEXT. */
 	void (*proc)(struct Widget *);                          /*!< Parameter for DRAW_MODE_CUSTOM_PROC. */