diff --git a/src/worksp/mzscheme/mzscheme.sln b/src/worksp/mzscheme/mzscheme.sln
index 1444626ada..ad5c98346b 100644
--- a/src/worksp/mzscheme/mzscheme.sln
+++ b/src/worksp/mzscheme/mzscheme.sln
@@ -2,11 +2,11 @@ Microsoft Visual Studio Solution File, Format Version 9.00
 # Visual Studio 2005
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "MzScheme", "mzscheme.vcproj", "{EB7023C8-6D72-4DE4-ADFC-3913C4C70991}"
 	ProjectSection(ProjectDependencies) = postProject
-		{2D99E176-BCA5-4B8E-B25C-1B2D7179C188} = {2D99E176-BCA5-4B8E-B25C-1B2D7179C188}
+		{A6713577-7DFB-48F8-B8C1-7DB2D7C51F90} = {A6713577-7DFB-48F8-B8C1-7DB2D7C51F90}
 		{CB68718B-24BF-43E3-9E96-BCF9B37CFE2D} = {CB68718B-24BF-43E3-9E96-BCF9B37CFE2D}
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libmzsch", "..\libmzsch\libmzsch.vcproj", "{2D99E176-BCA5-4B8E-B25C-1B2D7179C188}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libmzsch", "..\libmzsch\libmzsch.vcproj", "{A6713577-7DFB-48F8-B8C1-7DB2D7C51F90}"
 	ProjectSection(ProjectDependencies) = postProject
 		{CB68718B-24BF-43E3-9E96-BCF9B37CFE2D} = {CB68718B-24BF-43E3-9E96-BCF9B37CFE2D}
 	EndProjectSection
@@ -23,10 +23,10 @@ Global
 		{EB7023C8-6D72-4DE4-ADFC-3913C4C70991}.Debug|Win32.Build.0 = Debug|Win32
 		{EB7023C8-6D72-4DE4-ADFC-3913C4C70991}.Release|Win32.ActiveCfg = Release|Win32
 		{EB7023C8-6D72-4DE4-ADFC-3913C4C70991}.Release|Win32.Build.0 = Release|Win32
-		{2D99E176-BCA5-4B8E-B25C-1B2D7179C188}.Debug|Win32.ActiveCfg = Debug|Win32
-		{2D99E176-BCA5-4B8E-B25C-1B2D7179C188}.Debug|Win32.Build.0 = Debug|Win32
-		{2D99E176-BCA5-4B8E-B25C-1B2D7179C188}.Release|Win32.ActiveCfg = Release|Win32
-		{2D99E176-BCA5-4B8E-B25C-1B2D7179C188}.Release|Win32.Build.0 = Release|Win32
+		{A6713577-7DFB-48F8-B8C1-7DB2D7C51F90}.Debug|Win32.ActiveCfg = Debug|Win32
+		{A6713577-7DFB-48F8-B8C1-7DB2D7C51F90}.Debug|Win32.Build.0 = Debug|Win32
+		{A6713577-7DFB-48F8-B8C1-7DB2D7C51F90}.Release|Win32.ActiveCfg = Release|Win32
+		{A6713577-7DFB-48F8-B8C1-7DB2D7C51F90}.Release|Win32.Build.0 = Release|Win32
 		{CB68718B-24BF-43E3-9E96-BCF9B37CFE2D}.Debug|Win32.ActiveCfg = Debug|Win32
 		{CB68718B-24BF-43E3-9E96-BCF9B37CFE2D}.Debug|Win32.Build.0 = Debug|Win32
 		{CB68718B-24BF-43E3-9E96-BCF9B37CFE2D}.Release|Win32.ActiveCfg = Release|Win32