diff --git a/src/libstore/tests/worker-protocol.cc b/src/libstore/tests/worker-protocol.cc
index 63fecce96..b10192cc1 100644
--- a/src/libstore/tests/worker-protocol.cc
+++ b/src/libstore/tests/worker-protocol.cc
@@ -72,10 +72,19 @@ VERSIONED_CHARACTERIZATION_TEST(
     derivedPath,
     "derived-path",
     defaultVersion,
-    (std::tuple<DerivedPath, DerivedPath> {
+    (std::tuple<DerivedPath, DerivedPath, DerivedPath, DerivedPath> {
         DerivedPath::Opaque {
             .path = StorePath { "g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-foo" },
         },
+        DerivedPath::Opaque {
+            .path = StorePath { "g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-foo.drv" },
+        },
+        DerivedPath::Built {
+            .drvPath = makeConstantStorePathRef(StorePath {
+                "g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-bar.drv",
+            }),
+            .outputs = OutputsSpec::All { },
+        },
         DerivedPath::Built {
             .drvPath = makeConstantStorePathRef(StorePath {
                 "g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-bar.drv",
diff --git a/unit-test-data/libstore/worker-protocol/derived-path.bin b/unit-test-data/libstore/worker-protocol/derived-path.bin
index bb1a81ac6..0729b2690 100644
Binary files a/unit-test-data/libstore/worker-protocol/derived-path.bin and b/unit-test-data/libstore/worker-protocol/derived-path.bin differ