diff --git a/lix/libcmd/installable-derived-path.cc b/lix/libcmd/installable-derived-path.cc
index 7a22e9042..1f7920240 100644
--- a/lix/libcmd/installable-derived-path.cc
+++ b/lix/libcmd/installable-derived-path.cc
@@ -26,35 +26,27 @@ InstallableDerivedPath InstallableDerivedPath::parse(
     std::string_view prefix,
     ExtendedOutputsSpec extendedOutputsSpec)
 {
-    auto derivedPath = std::visit(overloaded {
-        // If the user did not use ^, we treat the output more
-        // liberally: we accept a symlink chain or an actual
-        // store path.
-        [&](const ExtendedOutputsSpec::Default &) -> DerivedPath {
-            auto storePath = store->followLinksToStorePath(prefix);
-            // Remove this prior to stabilizing the new CLI.
-            if (storePath.isDerivation()) {
-                auto oldDerivedPath = DerivedPath::Built {
-                    .drvPath = makeConstantStorePath(storePath),
-                    .outputs = OutputsSpec::All { },
+    auto derivedPath = std::visit(
+        overloaded{
+            // If the user did not use ^, we treat the output more
+            // liberally: we accept a symlink chain or an actual
+            // store path.
+            [&](const ExtendedOutputsSpec::Default &) -> DerivedPath {
+                return DerivedPath::Opaque{
+                    .path = store->followLinksToStorePath(prefix),
                 };
-                warn(
-                    "The interpretation of store paths arguments ending in `.drv` recently changed. If this command is now failing try again with '%s'",
-                    oldDerivedPath.to_string(*store));
-            };
-            return DerivedPath::Opaque {
-                .path = std::move(storePath),
-            };
+            },
+            // If the user did use ^, we just do exactly what is written.
+            [&](const ExtendedOutputsSpec::Explicit & outputSpec) -> DerivedPath {
+                auto drv = DerivedPathOpaque::parse(*store, prefix);
+                return DerivedPath::Built{
+                    .drvPath = std::move(drv),
+                    .outputs = outputSpec,
+                };
+            },
         },
-        // If the user did use ^, we just do exactly what is written.
-        [&](const ExtendedOutputsSpec::Explicit & outputSpec) -> DerivedPath {
-            auto drv = DerivedPathOpaque::parse(*store, prefix);
-            return DerivedPath::Built {
-                .drvPath = std::move(drv),
-                .outputs = outputSpec,
-            };
-        },
-    }, extendedOutputsSpec.raw);
+        extendedOutputsSpec.raw
+    );
     return InstallableDerivedPath {
         store,
         std::move(derivedPath),