diff --git a/src/Paket.Core/LockFile.fs b/src/Paket.Core/LockFile.fs
index 9858e83051..d1daebdcec 100644
--- a/src/Paket.Core/LockFile.fs
+++ b/src/Paket.Core/LockFile.fs
@@ -421,8 +421,22 @@ module LockFileParser =
                     | GitHubLink | GistLink ->
                         match currentGroup.RemoteUrl |> Option.map(fun s -> s.Split '/') with
                         | Some [| owner; project |] ->
+                            let pieces =
+                                if details.Contains '"' then
+                                    let pathInfo =
+                                        match details.IndexOf ('"', 1) with
+                                        | idx when idx >= 0 -> Some (details.Substring (1, idx - 1), idx)
+                                        | _ -> None
+                                    match pathInfo with
+                                    | Some (path, pathEndIdx) ->
+                                        let commitAndAuthKey = details.Substring(pathEndIdx + 1).Split(' ')
+                                        Array.append [| path |] commitAndAuthKey
+                                    | None -> Array.empty
+                                else
+                                    details.Split ' '
+
                             let path, commit, authKey =
-                                match details.Split ' ' with
+                                match pieces with
                                 | [| filePath; commit; authKey |] -> filePath, commit |> removeBrackets, (Some authKey)
                                 | [| filePath; commit |] -> filePath, commit |> removeBrackets, None
                                 | _ -> failwith "invalid file source details."
diff --git a/tests/Paket.Tests/Lockfile/ParserSpecs.fs b/tests/Paket.Tests/Lockfile/ParserSpecs.fs
index be500f46a1..baee8631cc 100644
--- a/tests/Paket.Tests/Lockfile/ParserSpecs.fs
+++ b/tests/Paket.Tests/Lockfile/ParserSpecs.fs
@@ -880,3 +880,25 @@ let ``should parse local git lock file with build and no specs``() =
     lockFile.Head.SourceFiles.Head.Commit |> shouldEqual "2942d23fcb13a2574b635194203aed7610b21903"
     lockFile.Head.SourceFiles.Head.Project |> shouldEqual "nupkgtest"
     lockFile.Head.SourceFiles.Head.Command |> shouldEqual (Some "build.cmd Test")
+
+let lockFileWithFilesContainingSpaces = """
+GITHUB
+  remote: owner/repo
+  specs:
+    "file 1.fs" (7623fc13439f0e60bd05c1ed3b5f6dcb937fe468)"""
+
+[<Test>]
+let ``should parse lock file with spaces in file names``() =
+    let lockFile = LockFileParser.Parse (toLines lockFileWithFilesContainingSpaces)
+    let sourceFiles = List.rev lockFile.Head.SourceFiles
+    sourceFiles|> shouldEqual
+        [ { Owner = "owner"
+            Project = "repo"
+            Name = "file 1.fs"
+            Origin = ModuleResolver.Origin.GitHubLink
+            Dependencies = Set.empty
+            Commit = "7623fc13439f0e60bd05c1ed3b5f6dcb937fe468"
+            Command = None
+            OperatingSystemRestriction = None
+            PackagePath = None
+            AuthKey = None } ]