diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/both.ts b/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/both.ts
new file mode 100644
index 00000000000..ad1d380d6cc
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/both.ts
@@ -0,0 +1 @@
+export const x = 1;
diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/differentExtension.js b/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/differentExtension.js
new file mode 100644
index 00000000000..ad1d380d6cc
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/differentExtension.js
@@ -0,0 +1 @@
+export const x = 1;
diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/only1.ts b/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/only1.ts
new file mode 100644
index 00000000000..ad1d380d6cc
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/only1.ts
@@ -0,0 +1 @@
+export const x = 1;
diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/subdir/both.ts b/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/subdir/both.ts
new file mode 100644
index 00000000000..ad1d380d6cc
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/subdir/both.ts
@@ -0,0 +1 @@
+export const x = 1;
diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/subdir/index.ts b/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/subdir/index.ts
new file mode 100644
index 00000000000..ad1d380d6cc
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/subdir/index.ts
@@ -0,0 +1 @@
+export const x = 1;
diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/subdir/only1.ts b/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/subdir/only1.ts
new file mode 100644
index 00000000000..ad1d380d6cc
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/lib1/subdir/only1.ts
@@ -0,0 +1 @@
+export const x = 1;
diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/both.ts b/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/both.ts
new file mode 100644
index 00000000000..ad1d380d6cc
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/both.ts
@@ -0,0 +1 @@
+export const x = 1;
diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/differentExtension.ts b/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/differentExtension.ts
new file mode 100644
index 00000000000..ad1d380d6cc
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/differentExtension.ts
@@ -0,0 +1 @@
+export const x = 1;
diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/only2.ts b/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/only2.ts
new file mode 100644
index 00000000000..ad1d380d6cc
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/only2.ts
@@ -0,0 +1 @@
+export const x = 1;
diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/subdir/both.ts b/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/subdir/both.ts
new file mode 100644
index 00000000000..ad1d380d6cc
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/subdir/both.ts
@@ -0,0 +1 @@
+export const x = 1;
diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/subdir/index.ts b/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/subdir/index.ts
new file mode 100644
index 00000000000..ad1d380d6cc
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/subdir/index.ts
@@ -0,0 +1 @@
+export const x = 1;
diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/subdir/only2.ts b/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/subdir/only2.ts
new file mode 100644
index 00000000000..ad1d380d6cc
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/lib2/subdir/only2.ts
@@ -0,0 +1 @@
+export const x = 1;
diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/src/main.ts b/javascript/ql/test/library-tests/PathResolution/Fallback/src/main.ts
new file mode 100644
index 00000000000..1b0bdb14e99
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/src/main.ts
@@ -0,0 +1,10 @@
+import "@/both" // $ importTarget=Fallback/lib1/both.ts
+import "@/only1" // $ importTarget=Fallback/lib1/only1.ts
+import "@/only2" // $ importTarget=Fallback/lib2/only2.ts
+import "@/differentExtension" // $ importTarget=Fallback/lib2/differentExtension.ts
+import "@/differentExtension.js" // $ importTarget=Fallback/lib2/differentExtension.ts
+
+import "@/subdir" // $ importTarget=Fallback/lib1/subdir/index.ts
+import "@/subdir/both" // $ importTarget=Fallback/lib1/subdir/both.ts
+import "@/subdir/only1" // $ importTarget=Fallback/lib1/subdir/only1.ts
+import "@/subdir/only2" // $ importTarget=Fallback/lib2/subdir/only2.ts
diff --git a/javascript/ql/test/library-tests/PathResolution/Fallback/tsconfig.json b/javascript/ql/test/library-tests/PathResolution/Fallback/tsconfig.json
new file mode 100644
index 00000000000..239fac92558
--- /dev/null
+++ b/javascript/ql/test/library-tests/PathResolution/Fallback/tsconfig.json
@@ -0,0 +1,8 @@
+{
+    "include": ["."],
+    "compilerOptions": {
+        "paths": {
+            "@/*": ["./lib1/*", "./lib2/*"],
+        }
+    }
+}
diff --git a/javascript/ql/test/library-tests/PathResolution/test.expected b/javascript/ql/test/library-tests/PathResolution/test.expected
index c86d5df57cb..94d9750b5d1 100644
--- a/javascript/ql/test/library-tests/PathResolution/test.expected
+++ b/javascript/ql/test/library-tests/PathResolution/test.expected
@@ -40,6 +40,15 @@
 | Extended/src/main.ts:24:1:24:17 | import "@/index"; | Extended/lib/index.ts |
 | Extended/src/main.ts:25:1:25:20 | import "@/index.ts"; | Extended/lib/index.ts |
 | Extended/src/main.ts:26:1:26:20 | import "@/index.js"; | Extended/lib/index.ts |
+| Fallback/src/main.ts:1:1:1:15 | import "@/both" | Fallback/lib1/both.ts |
+| Fallback/src/main.ts:2:1:2:16 | import "@/only1" | Fallback/lib1/only1.ts |
+| Fallback/src/main.ts:3:1:3:16 | import "@/only2" | Fallback/lib2/only2.ts |
+| Fallback/src/main.ts:4:1:4:29 | import  ... ension" | Fallback/lib2/differentExtension.ts |
+| Fallback/src/main.ts:5:1:5:32 | import  ... ion.js" | Fallback/lib2/differentExtension.ts |
+| Fallback/src/main.ts:7:1:7:17 | import "@/subdir" | Fallback/lib1/subdir/index.ts |
+| Fallback/src/main.ts:8:1:8:22 | import  ... r/both" | Fallback/lib1/subdir/both.ts |
+| Fallback/src/main.ts:9:1:9:23 | import  ... /only1" | Fallback/lib1/subdir/only1.ts |
+| Fallback/src/main.ts:10:1:10:23 | import  ... /only2" | Fallback/lib2/subdir/only2.ts |
 | NoBaseUrl/src/main.ts:2:1:2:21 | import  ... /file"; | NoBaseUrl/lib/file.ts |
 | NoBaseUrl/src/main.ts:3:1:3:24 | import  ... le.ts"; | NoBaseUrl/lib/file.ts |
 | NoBaseUrl/src/main.ts:4:1:4:24 | import  ... le.js"; | NoBaseUrl/lib/file.ts |