diff --git a/src/smallmap_gui.cpp b/src/smallmap_gui.cpp
--- a/src/smallmap_gui.cpp
+++ b/src/smallmap_gui.cpp
@@ -82,7 +82,7 @@ static const NWidgetPart _nested_smallma
 				NWidget(WWT_IMGBTN, COLOUR_BROWN, SM_WIDGET_VEGETATION), SetDataTip(SPR_IMG_PLANTTREES, STR_SMALLMAP_TOOLTIP_SHOW_VEGETATION_ON_MAP),
 				NWidget(WWT_IMGBTN, COLOUR_BROWN, SM_WIDGET_OWNERS), SetDataTip(SPR_IMG_COMPANY_GENERAL, STR_SMALLMAP_TOOLTIP_SHOW_LAND_OWNERS_ON_MAP),
 			EndContainer(),
-			NWidget(WWT_PANEL, COLOUR_BROWN, SM_WIDGET_BUTTONSPANEL), SetFill(true, true), EndContainer(),
+			NWidget(WWT_PANEL, COLOUR_BROWN, SM_WIDGET_BUTTONSPANEL), SetFill(1, 1), EndContainer(),
 		EndContainer(),
 	EndContainer(),
 	/* Bottom button row and resize box. */
@@ -94,9 +94,9 @@ static const NWidgetPart _nested_smallma
 						NWidget(WWT_TEXTBTN, COLOUR_BROWN, SM_WIDGET_ENABLEINDUSTRIES), SetMinimalSize(100, 12), SetDataTip(STR_SMALLMAP_ENABLE_ALL, STR_NULL),
 						NWidget(WWT_TEXTBTN, COLOUR_BROWN, SM_WIDGET_DISABLEINDUSTRIES), SetMinimalSize(100, 12), SetDataTip(STR_SMALLMAP_DISABLE_ALL, STR_NULL),
 					EndContainer(),
-					NWidget(NWID_SPACER), SetFill(true, true),
+					NWidget(NWID_SPACER), SetFill(1, 1),
 				EndContainer(),
-				NWidget(NWID_SPACER), SetFill(true, false), SetResize(1, 0),
+				NWidget(NWID_SPACER), SetFill(1, 0), SetResize(1, 0),
 			EndContainer(),
 		EndContainer(),
 		NWidget(WWT_RESIZEBOX, COLOUR_BROWN, SM_WIDGET_RESIZEBOX),