diff --git a/src/newgrf_roadtype.cpp b/src/newgrf_roadtype.cpp
index 8eb8325c74..a0cab4b15d 100644
--- a/src/newgrf_roadtype.cpp
+++ b/src/newgrf_roadtype.cpp
@@ -73,19 +73,6 @@ uint32 RoadTypeResolverObject::GetDebugID() const
 	return this->roadtype_scope.rti->label;
 }
 
-/**
- * Constructor of the roadtype scope resolvers.
- * @param ro Surrounding resolver.
- * @param tile %Tile containing the track. For track on a bridge this is the southern bridgehead.
- * @param context Are we resolving sprites for the upper halftile, or on a bridge?
- */
-RoadTypeScopeResolver::RoadTypeScopeResolver(ResolverObject &ro, const RoadTypeInfo *rti, TileIndex tile, TileContext context) : ScopeResolver(ro)
-{
-	this->tile = tile;
-	this->context = context;
-	this->rti = rti;
-}
-
 /**
  * Resolver object for road types.
  * @param rti Roadtype. nullptr in NewGRF Inspect window.
diff --git a/src/newgrf_roadtype.h b/src/newgrf_roadtype.h
index 748d62e82c..3314db345b 100644
--- a/src/newgrf_roadtype.h
+++ b/src/newgrf_roadtype.h
@@ -20,7 +20,17 @@ struct RoadTypeScopeResolver : public ScopeResolver {
 	TileContext context; ///< Are we resolving sprites for the upper halftile, or on a bridge?
 	const RoadTypeInfo *rti;
 
-	RoadTypeScopeResolver(ResolverObject &ro, const RoadTypeInfo *rti, TileIndex tile, TileContext context);
+	/**
+	* Constructor of the roadtype scope resolvers.
+	* @param ro Surrounding resolver.
+	* @param rti Associated RoadTypeInfo.
+	* @param tile %Tile containing the track. For track on a bridge this is the southern bridgehead.
+	* @param context Are we resolving sprites for the upper halftile, or on a bridge?
+	*/
+	RoadTypeScopeResolver(ResolverObject &ro, const RoadTypeInfo *rti, TileIndex tile, TileContext context)
+		: ScopeResolver(ro), tile(tile), context(context), rti(rti)
+	{
+	}
 
 	/* virtual */ uint32 GetRandomBits() const;
 	/* virtual */ uint32 GetVariable(byte variable, uint32 parameter, bool *available) const;