diff --git a/src/SQLCE4Umbraco/SqlCEInstaller.cs b/src/SQLCE4Umbraco/SqlCEInstaller.cs
index 9e71a39e51..4f85b13a2d 100644
--- a/src/SQLCE4Umbraco/SqlCEInstaller.cs
+++ b/src/SQLCE4Umbraco/SqlCEInstaller.cs
@@ -26,7 +26,7 @@ namespace SqlCE4Umbraco
 
         /// <summary>The specifications to determine the database version.</summary>
         private static readonly VersionSpecs[] m_VersionSpecs = new VersionSpecs[] {
-					new VersionSpecs("CONSTRAINT_NAME","INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS", "FK_umbracoUser2app_umbracoApp", false, DatabaseVersion.Version4_8), 
+					new VersionSpecs("CONSTRAINT_NAME","INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS", "'FK_umbracoUser2app_umbracoApp'", false, DatabaseVersion.Version4_8), 
 					new VersionSpecs("id","umbracoNode", "-21", DatabaseVersion.Version4_1),        
 					new VersionSpecs("action","umbracoAppTree",DatabaseVersion.Version4),
                     new VersionSpecs("description","cmsContentType",DatabaseVersion.Version3),
diff --git a/src/umbraco.datalayer/SqlHelpers/MySql/MySqlInstaller.cs b/src/umbraco.datalayer/SqlHelpers/MySql/MySqlInstaller.cs
index 124ea44d59..ad9892a2a5 100644
--- a/src/umbraco.datalayer/SqlHelpers/MySql/MySqlInstaller.cs
+++ b/src/umbraco.datalayer/SqlHelpers/MySql/MySqlInstaller.cs
@@ -25,7 +25,7 @@ namespace umbraco.DataLayer.SqlHelpers.MySql
 
         /// <summary>The specifications to determine the database version.</summary>
         private static readonly VersionSpecs[] m_VersionSpecs = new VersionSpecs[] {
-					new VersionSpecs("CONSTRAINT_NAME","INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS", "FK_umbracoUser2app_umbracoApp", false, DatabaseVersion.Version4_8), 
+					new VersionSpecs("CONSTRAINT_NAME","INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS", "'FK_umbracoUser2app_umbracoApp'", false, DatabaseVersion.Version4_8), 
 					new VersionSpecs("id","umbracoNode", "-21", DatabaseVersion.Version4_1),
                     new VersionSpecs("action","umbracoAppTree",DatabaseVersion.Version4),
                     new VersionSpecs("description","cmsContentType",DatabaseVersion.Version3),
diff --git a/src/umbraco.datalayer/SqlHelpers/SqlServer/SqlServerInstaller.cs b/src/umbraco.datalayer/SqlHelpers/SqlServer/SqlServerInstaller.cs
index 377bcfda48..4b735e0504 100644
--- a/src/umbraco.datalayer/SqlHelpers/SqlServer/SqlServerInstaller.cs
+++ b/src/umbraco.datalayer/SqlHelpers/SqlServer/SqlServerInstaller.cs
@@ -24,7 +24,7 @@ namespace umbraco.DataLayer.SqlHelpers.SqlServer
 
         /// <summary>The specifications to determine the database version.</summary>
         private static readonly VersionSpecs[] m_VersionSpecs = new VersionSpecs[] {
-					new VersionSpecs("CONSTRAINT_NAME","INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS", "FK_umbracoUser2app_umbracoApp", false, DatabaseVersion.Version4_8), 
+					new VersionSpecs("CONSTRAINT_NAME","INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS", "'FK_umbracoUser2app_umbracoApp'", false, DatabaseVersion.Version4_8), 
 					new VersionSpecs("id","umbracoNode", "-21", DatabaseVersion.Version4_1),        
 					new VersionSpecs("action","umbracoAppTree",DatabaseVersion.Version4),
                     new VersionSpecs("description","cmsContentType",DatabaseVersion.Version3),