diff --git a/projects/openttd.vcproj b/projects/openttd.vcproj
index 15ac028a0a..5f47f21399 100644
--- a/projects/openttd.vcproj
+++ b/projects/openttd.vcproj
@@ -389,6 +389,9 @@
 			<File
 				RelativePath=".\..\src\widget.cpp">
 			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown.cpp">
+			</File>
 			<File
 				RelativePath=".\..\src\win32.cpp">
 			</File>
@@ -732,6 +735,15 @@
 			<File
 				RelativePath=".\..\src\window.h">
 			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown.h">
+			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown_type.h">
+			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown_func.h">
+			</File>
 			<File
 				RelativePath=".\..\src\zoom.hpp">
 			</File>
diff --git a/projects/openttd_vs80.vcproj b/projects/openttd_vs80.vcproj
index dbeceafe92..43fb0e9bcc 100644
--- a/projects/openttd_vs80.vcproj
+++ b/projects/openttd_vs80.vcproj
@@ -751,6 +751,10 @@
 				RelativePath=".\..\src\widget.cpp"
 				>
 			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown.cpp"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\win32.cpp"
 				>
@@ -1207,6 +1211,18 @@
 				RelativePath=".\..\src\window.h"
 				>
 			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown.h"
+				>
+			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown_type.h"
+				>
+			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown_func.h"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\zoom.hpp"
 				>
diff --git a/projects/openttd_vs90.vcproj b/projects/openttd_vs90.vcproj
index c7a4c49483..7e43c891e8 100644
--- a/projects/openttd_vs90.vcproj
+++ b/projects/openttd_vs90.vcproj
@@ -748,6 +748,10 @@
 				RelativePath=".\..\src\widget.cpp"
 				>
 			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown.cpp"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\win32.cpp"
 				>
@@ -1204,6 +1208,18 @@
 				RelativePath=".\..\src\window.h"
 				>
 			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown.h"
+				>
+			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown_type.h"
+				>
+			</File>
+			<File
+				RelativePath=".\..\src\widgets\dropdown_func.h"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\zoom.hpp"
 				>
diff --git a/source.list b/source.list
index 923c5c9c22..05023b1d3d 100644
--- a/source.list
+++ b/source.list
@@ -212,6 +212,8 @@ sound/win32_s.h
 video/win32_v.h
 window.h
 widgets/dropdown.h
+widgets/dropdown_type.h
+widgets/dropdown_func.h
 zoom.hpp
 
 # GUI Source Code