diff --git a/projects/openttd_vs80.vcproj b/projects/openttd_vs80.vcproj
index 38dc2c46de..e1e3409081 100644
--- a/projects/openttd_vs80.vcproj
+++ b/projects/openttd_vs80.vcproj
@@ -3199,6 +3199,14 @@
 		<Filter
 			Name="Network Core"
 			>
+			<File
+				RelativePath=".\..\src\network\core\address.cpp"
+				>
+			</File>
+			<File
+				RelativePath=".\..\src\network\core\address.h"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\network\core\config.h"
 				>
@@ -3243,6 +3251,10 @@
 				RelativePath=".\..\src\network\core\tcp.h"
 				>
 			</File>
+			<File
+				RelativePath=".\..\src\network\core\tcp_connect.cpp"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\network\core\tcp_content.cpp"
 				>
diff --git a/projects/openttd_vs90.vcproj b/projects/openttd_vs90.vcproj
index 2b15f83640..ff7cf9819b 100644
--- a/projects/openttd_vs90.vcproj
+++ b/projects/openttd_vs90.vcproj
@@ -3196,6 +3196,14 @@
 		<Filter
 			Name="Network Core"
 			>
+			<File
+				RelativePath=".\..\src\network\core\address.cpp"
+				>
+			</File>
+			<File
+				RelativePath=".\..\src\network\core\address.h"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\network\core\config.h"
 				>
@@ -3240,6 +3248,10 @@
 				RelativePath=".\..\src\network\core\tcp.h"
 				>
 			</File>
+			<File
+				RelativePath=".\..\src\network\core\tcp_connect.cpp"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\network\core\tcp_content.cpp"
 				>