diff --git a/projects/openttd_vs80.sln b/projects/openttd_vs80.sln
index 9b61c5c3d1..9e6dd1219d 100644
--- a/projects/openttd_vs80.sln
+++ b/projects/openttd_vs80.sln
@@ -72,15 +72,19 @@ Global
 		{0817F629-589E-4A3B-B81A-8647BC571E35}.Debug|Win32.ActiveCfg = Debug|Win32
 		{0817F629-589E-4A3B-B81A-8647BC571E35}.Debug|Win32.Build.0 = Debug|Win32
 		{0817F629-589E-4A3B-B81A-8647BC571E35}.Debug|x64.ActiveCfg = Debug|Win32
+		{0817F629-589E-4A3B-B81A-8647BC571E35}.Debug|x64.Build.0 = Debug|Win32
 		{0817F629-589E-4A3B-B81A-8647BC571E35}.Release|Win32.ActiveCfg = Debug|Win32
 		{0817F629-589E-4A3B-B81A-8647BC571E35}.Release|Win32.Build.0 = Debug|Win32
 		{0817F629-589E-4A3B-B81A-8647BC571E35}.Release|x64.ActiveCfg = Debug|Win32
+		{0817F629-589E-4A3B-B81A-8647BC571E35}.Release|x64.Build.0 = Debug|Win32
 		{E9548DE9-F089-49B7-93A6-30BE2CC311C7}.Debug|Win32.ActiveCfg = Debug|Win32
 		{E9548DE9-F089-49B7-93A6-30BE2CC311C7}.Debug|Win32.Build.0 = Debug|Win32
 		{E9548DE9-F089-49B7-93A6-30BE2CC311C7}.Debug|x64.ActiveCfg = Debug|Win32
+		{E9548DE9-F089-49B7-93A6-30BE2CC311C7}.Debug|x64.Build.0 = Debug|Win32
 		{E9548DE9-F089-49B7-93A6-30BE2CC311C7}.Release|Win32.ActiveCfg = Debug|Win32
 		{E9548DE9-F089-49B7-93A6-30BE2CC311C7}.Release|Win32.Build.0 = Debug|Win32
 		{E9548DE9-F089-49B7-93A6-30BE2CC311C7}.Release|x64.ActiveCfg = Debug|Win32
+		{E9548DE9-F089-49B7-93A6-30BE2CC311C7}.Release|x64.Build.0 = Debug|Win32
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE