diff --git a/test/jest/unit/lib/iac/drift/drift.spec.ts b/test/jest/unit/lib/iac/drift/drift.spec.ts
index 224394c13c..7b3d134a9b 100644
--- a/test/jest/unit/lib/iac/drift/drift.spec.ts
+++ b/test/jest/unit/lib/iac/drift/drift.spec.ts
@@ -1,4 +1,5 @@
 import * as mockFs from 'mock-fs';
+import chalk from 'chalk';
 
 import {
   driftignoreFromPolicy,
@@ -396,6 +397,22 @@ describe('Test describe output', () => {
     return fs.readFileSync(filePath, 'utf-8');
   };
 
+  // The .console fixtures contain ANSI colour codes, so the output has to be
+  // generated with colour on. Chalk otherwise decides that from the ambient
+  // environment and emits plain text whenever stdout is not a TTY.
+  const originalLevel = chalk.level;
+  const originalEnabled = chalk.enabled;
+
+  beforeAll(() => {
+    chalk.level = 1;
+    chalk.enabled = true;
+  });
+
+  afterAll(() => {
+    chalk.level = originalLevel;
+    chalk.enabled = originalEnabled;
+  });
+
   it('test output for known analysis', () => {
     const analysis = JSON.parse(loadFile('all.json'));
     const options: DescribeOptions = {