gistfile1.txt

diff --git a/default.nix b/default.nix
index 18aafb6..0fabd2e 100644
--- a/default.nix
+++ b/default.nix
@@ -148,15 +148,20 @@ let
         shortRev = builtins.substring 0 7 info.rev;
       }
     else if info.type == "path" then
-      {
-        outPath = builtins.path (
-          {
-            inherit (info) path;
-            name = "source";
-          }
-          // maybeNarHash info
-        );
-      }
+      if copySourceTreeToStore then
+        {
+          outPath = builtins.path (
+            {
+              inherit (info) path;
+              name = "source";
+            }
+            // maybeNarHash info
+          );
+        }
+      else
+        {
+          outPath = info.path;
+        }
     else if info.type == "tarball" then
       {
         outPath = fetchTarball ({ inherit (info) url; } // maybeNarHash info);