diff --git a/src/main/resources/org/eolang/lints/misc/redundant-object.xsl b/src/main/resources/org/eolang/lints/misc/redundant-object.xsl
index 578a273f8..298e1d1e2 100644
--- a/src/main/resources/org/eolang/lints/misc/redundant-object.xsl
+++ b/src/main/resources/org/eolang/lints/misc/redundant-object.xsl
@@ -8,7 +8,7 @@
   <xsl:import href="/org/eolang/funcs/escape.xsl"/>
   <xsl:import href="/org/eolang/funcs/defect-context.xsl"/>
   <xsl:output encoding="UTF-8" method="xml"/>
-  <xsl:key name="referenced-by-name" match="o[@base]" use="if (matches(@base, '^ξ(?:\.ρ)*\.')) then tokenize(replace(@base, '^ξ(?:\.ρ)*\.', ''), '\.')[1] else ''"/>
+  <xsl:key name="referenced-by-name" match="o[@base]" use="if (matches(@base, '^ξ(?:\.ρ)*\.')) then tokenize(replace(@base, '^ξ(?:\.ρ)*\.', ''), '\.')[1] else if (matches(@base, '^Φ\.[^.]+\.')) then tokenize(@base, '\.')[3] else ''"/>
   <xsl:template match="/">
     <defects>
       <xsl:variable name="top" select="/object/o/generate-id()"/>
diff --git a/src/test/resources/org/eolang/lints/packs/single/redundant-object/allows-object-refs-in-absolute-form.yaml b/src/test/resources/org/eolang/lints/packs/single/redundant-object/allows-object-refs-in-absolute-form.yaml
new file mode 100644
index 000000000..1a1bd3f22
--- /dev/null
+++ b/src/test/resources/org/eolang/lints/packs/single/redundant-object/allows-object-refs-in-absolute-form.yaml
@@ -0,0 +1,26 @@
+# SPDX-FileCopyrightText: Copyright (c) 2016-2026 Objectionary.com
+# SPDX-License-Identifier: MIT
+---
+sheets:
+  - /org/eolang/lints/misc/redundant-object.xsl
+defects: 0
+input: |
+  [] > os
+    name > @
+    as-bool. > is-linux
+      exists.
+        next.
+          match.
+            regex "/linux/i"
+            name
+
+    or. ++> can-check-the-os-family
+      os.is-windows.or os.is-macos
+      os.is-linux
+
+    not. ++> can-tell-it-does-not-belong-to-two-os-families-at-once
+      or.
+        or.
+          os.is-linux.and os.is-macos
+          os.is-linux.and os.is-windows
+        os.is-macos.and os.is-windows