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-rw-r--r--src/nix-store/dotgraph.cc6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/nix-store/dotgraph.cc b/src/nix-store/dotgraph.cc
index fa8d353bc4fc..1d8ebfbd0351 100644
--- a/src/nix-store/dotgraph.cc
+++ b/src/nix-store/dotgraph.cc
@@ -108,8 +108,10 @@ void printDotGraph(const PathSet & roots)
         for (PathSet::iterator i = references.begin();
              i != references.end(); ++i)
         {
-            workList.insert(*i);
-            cout << makeEdge(*i, path);
+            if (*i != path) {
+                workList.insert(*i);
+                cout << makeEdge(*i, path);
+            }
         }