diff --git a/projects/openttd_vs80.vcproj b/projects/openttd_vs80.vcproj
--- a/projects/openttd_vs80.vcproj
+++ b/projects/openttd_vs80.vcproj
@@ -528,10 +528,6 @@
 				>
 			</File>
 			<File
-				RelativePath=".\..\src\widgets\dropdown.cpp"
-				>
-			</File>
-			<File
 				RelativePath=".\..\src\economy.cpp"
 				>
 			</File>
@@ -968,14 +964,6 @@
 				>
 			</File>
 			<File
-				RelativePath=".\..\src\widgets\dropdown_func.h"
-				>
-			</File>
-			<File
-				RelativePath=".\..\src\widgets\dropdown_type.h"
-				>
-			</File>
-			<File
 				RelativePath=".\..\src\economy_func.h"
 				>
 			</File>
@@ -1909,6 +1897,22 @@
 			</File>
 		</Filter>
 		<Filter
+			Name="Widgets"
+			>
+			<File
+				RelativePath=".\..\src\widgets\dropdown.cpp"
+				>
+			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown_func.h"
+				>
+			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown_type.h"
+				>
+			</File>
+		</Filter>
+		<Filter
 			Name="Command handlers"
 			>
 			<File
diff --git a/projects/openttd_vs90.vcproj b/projects/openttd_vs90.vcproj
--- a/projects/openttd_vs90.vcproj
+++ b/projects/openttd_vs90.vcproj
@@ -525,10 +525,6 @@
 				>
 			</File>
 			<File
-				RelativePath=".\..\src\widgets\dropdown.cpp"
-				>
-			</File>
-			<File
 				RelativePath=".\..\src\economy.cpp"
 				>
 			</File>
@@ -965,14 +961,6 @@
 				>
 			</File>
 			<File
-				RelativePath=".\..\src\widgets\dropdown_func.h"
-				>
-			</File>
-			<File
-				RelativePath=".\..\src\widgets\dropdown_type.h"
-				>
-			</File>
-			<File
 				RelativePath=".\..\src\economy_func.h"
 				>
 			</File>
@@ -1906,6 +1894,22 @@
 			</File>
 		</Filter>
 		<Filter
+			Name="Widgets"
+			>
+			<File
+				RelativePath=".\..\src\widgets\dropdown.cpp"
+				>
+			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown_func.h"
+				>
+			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown_type.h"
+				>
+			</File>
+		</Filter>
+		<Filter
 			Name="Command handlers"
 			>
 			<File
diff --git a/source.list b/source.list
--- a/source.list
+++ b/source.list
@@ -19,7 +19,6 @@ debug.cpp
 dedicated.cpp
 depot.cpp
 driver.cpp
-widgets/dropdown.cpp
 economy.cpp
 effectvehicle.cpp
 elrail.cpp
@@ -173,8 +172,6 @@ direction_func.h
 direction_type.h
 music/dmusic.h
 driver.h
-widgets/dropdown_func.h
-widgets/dropdown_type.h
 economy_func.h
 economy_type.h
 effectvehicle_base.h
@@ -425,6 +422,11 @@ tree_gui.cpp
 vehicle_gui.cpp
 waypoint_gui.cpp
 
+# Widgets
+widgets/dropdown.cpp
+widgets/dropdown_func.h
+widgets/dropdown_type.h
+
 # Command handlers
 aircraft_cmd.cpp
 autoreplace_cmd.cpp