diff --git a/src/licensedcode/data/rules/free-unknown_88.RULE b/src/licensedcode/data/inactive/rules/free-unknown_88.RULE
similarity index 100%
rename from src/licensedcode/data/rules/free-unknown_88.RULE
rename to src/licensedcode/data/inactive/rules/free-unknown_88.RULE
diff --git a/tests/licensedcode/data/datadriven/unknown/ts-jest-no-false-positive.md b/tests/licensedcode/data/datadriven/unknown/ts-jest-no-false-positive.md
new file mode 100644
index 00000000000..1d2ad98a8b0
--- /dev/null
+++ b/tests/licensedcode/data/datadriven/unknown/ts-jest-no-false-positive.md
@@ -0,0 +1,19 @@
+# ts-jest
+
+A Jest transformer with source map support that lets you use Jest to test projects written in TypeScript.
+
+## Features
+
+ts-jest is open source and free to use.
+
+The project is actively maintained and welcomes contributions.
+
+## Installation
+
+You can install ts-jest using npm:
+
+```bash
+npm install --save-dev ts-jest
+```
+
+This project is released under an open source license.
diff --git a/tests/licensedcode/data/datadriven/unknown/ts-jest-no-false-positive.md.yml b/tests/licensedcode/data/datadriven/unknown/ts-jest-no-false-positive.md.yml
new file mode 100644
index 00000000000..1882c7bddee
--- /dev/null
+++ b/tests/licensedcode/data/datadriven/unknown/ts-jest-no-false-positive.md.yml
@@ -0,0 +1,2 @@
+license_expressions: []
+notes: Casual mentions of "open source license" in documentation should not trigger license detection. This test verifies free-unknown_88.RULE (deactivated) does not cause false positives.