diff --git a/package-lock.json b/package-lock.json
index b1057c4d4..dcf6b57f5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -38,6 +38,7 @@
         "@types/semver": "^7.7.1",
         "@types/sinon": "^17.0.4",
         "@types/sinon-chai": "^3.2.12",
+        "@types/source-map-support": "^0.5.10",
         "@types/svg2ttf": "^5.0.3",
         "@types/svgicons2svgfont": "^10.0.5",
         "@types/ttf2woff": "^2.0.4",
@@ -2370,6 +2371,16 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/source-map-support": {
+      "version": "0.5.10",
+      "resolved": "https://registry.npmjs.org/@types/source-map-support/-/source-map-support-0.5.10.tgz",
+      "integrity": "sha512-tgVP2H469x9zq34Z0m/fgPewGhg/MLClalNOiPIzQlXrSS2YrKu/xCdSCKnEDwkFha51VKEKB6A9wW26/ZNwzA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "source-map": "^0.6.0"
+      }
+    },
     "node_modules/@types/svg2ttf": {
       "version": "5.0.3",
       "resolved": "https://registry.npmjs.org/@types/svg2ttf/-/svg2ttf-5.0.3.tgz",
@@ -13256,6 +13267,15 @@
       "integrity": "sha512-mQkU2jY8jJEF7YHjHvsQO8+3ughTL1mcnn96igfhONmR+fUPSKIkefQYpSe8bsly2Ep7oQbn/6VG5/9/0qcArQ==",
       "dev": true
     },
+    "@types/source-map-support": {
+      "version": "0.5.10",
+      "resolved": "https://registry.npmjs.org/@types/source-map-support/-/source-map-support-0.5.10.tgz",
+      "integrity": "sha512-tgVP2H469x9zq34Z0m/fgPewGhg/MLClalNOiPIzQlXrSS2YrKu/xCdSCKnEDwkFha51VKEKB6A9wW26/ZNwzA==",
+      "dev": true,
+      "requires": {
+        "source-map": "^0.6.0"
+      }
+    },
     "@types/svg2ttf": {
       "version": "5.0.3",
       "resolved": "https://registry.npmjs.org/@types/svg2ttf/-/svg2ttf-5.0.3.tgz",
diff --git a/package.json b/package.json
index d4dec5478..0f9595da9 100644
--- a/package.json
+++ b/package.json
@@ -2035,6 +2035,7 @@
     "@types/semver": "^7.7.1",
     "@types/sinon": "^17.0.4",
     "@types/sinon-chai": "^3.2.12",
+    "@types/source-map-support": "^0.5.10",
     "@types/svg2ttf": "^5.0.3",
     "@types/svgicons2svgfont": "^10.0.5",
     "@types/ttf2woff": "^2.0.4",
diff --git a/test/common.ts b/test/common.ts
index 3d8043a31..a966a2828 100644
--- a/test/common.ts
+++ b/test/common.ts
@@ -11,19 +11,34 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 //===----------------------------------------------------------------------===//
-// Use source-map-support to get better stack traces
-import "source-map-support/register";
-
 import * as chai from "chai";
 import * as chaiAsPromised from "chai-as-promised";
 import * as chaiSubset from "chai-subset";
 import * as fs from "fs";
+import * as mockFS from "mock-fs";
 import * as path from "path";
 import * as sinonChai from "sinon-chai";
+import * as sourceMapSupport from "source-map-support";
 import * as tsConfigPaths from "tsconfig-paths";
 
 import { installTagSupport } from "./tags";
 
+// Use source-map-support to get better stack traces.
+//
+// We have to override retrieveFile() here because any test that uses mock-fs will break
+// source map lookups. This will make sure that, even if mock-fs is in effect, source map
+// support can still find the files that it needs to.
+sourceMapSupport.install({
+    retrieveFile(path: string): string | null {
+        return mockFS.bypass(() => {
+            if (!fs.existsSync(path)) {
+                return null;
+            }
+            return fs.readFileSync(path, "utf-8");
+        });
+    },
+});
+
 const tsConfig = JSON.parse(
     // __dirname points to dist/test when transpiled, but we need the tsconfig.json in the real test/
     fs.readFileSync(path.join(__dirname, "../../test/tsconfig.json"), "utf-8")