diff --git a/TimberWinR.ServiceHost/Properties/AssemblyInfo.cs b/TimberWinR.ServiceHost/Properties/AssemblyInfo.cs
index 7d65e33..855a58f 100644
--- a/TimberWinR.ServiceHost/Properties/AssemblyInfo.cs
+++ b/TimberWinR.ServiceHost/Properties/AssemblyInfo.cs
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.3.14.0")]
-[assembly: AssemblyFileVersion("1.3.14.0")]
+[assembly: AssemblyVersion("1.3.15.0")]
+[assembly: AssemblyFileVersion("1.3.15.0")]
diff --git a/TimberWinR.UnitTests/GrokFilterTests.cs b/TimberWinR.UnitTests/GrokFilterTests.cs
index 69d572a..dd1fa53 100644
--- a/TimberWinR.UnitTests/GrokFilterTests.cs
+++ b/TimberWinR.UnitTests/GrokFilterTests.cs
@@ -69,7 +69,7 @@ namespace TimberWinR.UnitTests
             {
                 {"LogFilename", @"C:\\Logs1\\test1.log"},
                 {"Index", 7},
-                {"Text", null},
+                {"Text", "crap"},
                 {"type", "Win32-FileLog"},
                 {"ComputerName", "dev.vistaprint.net"}
             };
@@ -82,7 +82,7 @@ namespace TimberWinR.UnitTests
 		                ""condition"": ""\""[type]\"" == \""Win32-FileLog\"""",
 		                ""match"":[  
 			                ""Text"",
-			                """"
+			                ""crap""
 		                ],
                         ""remove_field"":[  
                             ""Index"",
diff --git a/TimberWinR/Filters/GrokFilter.cs b/TimberWinR/Filters/GrokFilter.cs
index 944d3e5..9d10820 100644
--- a/TimberWinR/Filters/GrokFilter.cs
+++ b/TimberWinR/Filters/GrokFilter.cs
@@ -19,7 +19,7 @@ namespace TimberWinR.Parser
         {
             get { return fields[i]; }
             set { fields[i] = value; }
-        }       
+        }
 
         public Fields(JObject json)
         {
@@ -116,7 +116,10 @@ namespace TimberWinR.Parser
                         return true; // Yes!
                     }
                 }
-                return true; // Empty field is no match
+                if (string.IsNullOrEmpty(expr))
+                    return true; // Empty field is no match
+                else
+                    return false;
             }
             return false; // Not specified is failure
         }
diff --git a/chocolateyUninstall.ps1.template b/chocolateyUninstall.ps1.template
index 5b8f222..3e5d46a 100644
--- a/chocolateyUninstall.ps1.template
+++ b/chocolateyUninstall.ps1.template
@@ -1,7 +1,7 @@
 $packageName = 'TimberWinR-${version}' # arbitrary name for the package, used in messages
 $installerType = 'msi' #only one of these: exe, msi, msu
 $url = 'http://www.ericfontana.com/TimberWinR/TimberWinR-${version}.0.msi' # download url
-$silentArgs = '${PROJECTGUID} /quiet'
+$silentArgs = '{593EF0C4-54E0-40D5-A3E3-922CD1C25B9E} /quiet' 
 $validExitCodes = @(0) #please insert other valid exit codes here, exit codes for ms http://msdn.microsoft.com/en-us/library/aa368542(VS.85).aspx
 UnInstall-ChocolateyPackage "$packageName" "$installerType" "$silentArgs" "$url" -validExitCodes $validExitCodes