diff --git a/src/app/FakeLib/NuGet/NugetHelper.fs b/src/app/FakeLib/NuGet/NugetHelper.fs
index 13f582f3243..28261f79b30 100644
--- a/src/app/FakeLib/NuGet/NugetHelper.fs
+++ b/src/app/FakeLib/NuGet/NugetHelper.fs
@@ -116,16 +116,18 @@ let private createNuspecFile parameters nuSpec =
                    |> FullName
     tracefn "Creating .nuspec file at %s" specFile
     fi.CopyTo(specFile, true) |> ignore
-    let getFrameworkGroup (frameworkTags : (string * string) seq) = 
+
+    let getFrameworkGroup (frameworkTags : (string * string) seq) =
         frameworkTags
-        |> Seq.map 
-               (fun (frameworkVersion, tags) -> sprintf "<group targetFramework=\"%s\">%s</group>" frameworkVersion tags)
+        |> Seq.map (fun (frameworkVersion, tags) ->
+                    if isNullOrEmpty frameworkVersion then sprintf "<group>%s</group>" tags
+                    else sprintf "<group targetFramework=\"%s\">%s</group>" frameworkVersion tags)
         |> toLines
-    
-    let getGroup items toTags = 
+
+    let getGroup items toTags =
         if items = [] then ""
         else sprintf "<group>%s</group>" (items |> toTags)
-    
+
     let getReferencesTags references = 
         references
         |> Seq.map (fun assembly -> sprintf "<reference file=\"%s\" />" assembly)