1 files changed, 14 insertions, 1 deletions
diff --git a/src/libstore/build/local-derivation-goal.cc b/src/libstore/build/local-derivation-goal.cc
index 8b7fbdcda..920097680 100644
--- a/src/libstore/build/local-derivation-goal.cc
+++ b/src/libstore/build/local-derivation-goal.cc
@@ -1172,6 +1172,19 @@ void LocalDerivationGoal::writeStructuredAttrs()
 }
 
 
+static StorePath pathPartOfReq(const SingleDerivedPath & req)
+{
+    return std::visit(overloaded {
+        [&](const SingleDerivedPath::Opaque & bo) {
+            return bo.path;
+        },
+        [&](const SingleDerivedPath::Built & bfd)  {
+            return pathPartOfReq(*bfd.drvPath);
+        },
+    }, req.raw());
+}
+
+
 static StorePath pathPartOfReq(const DerivedPath & req)
 {
     return std::visit(overloaded {
@@ -1179,7 +1192,7 @@ static StorePath pathPartOfReq(const DerivedPath & req)
             return bo.path;
         },
         [&](const DerivedPath::Built & bfd)  {
-            return bfd.drvPath;
+            return pathPartOfReq(*bfd.drvPath);
         },
     }, req.raw());
 }