diff --git a/lib/node-loader-extensionless.js b/lib/node-loader-extensionless.js
index b845f65..d24f4b3 100644
--- a/lib/node-loader-extensionless.js
+++ b/lib/node-loader-extensionless.js
@@ -14,7 +14,7 @@ const typescriptFileExts = [
 export async function resolve(specifier, context, nextResolve) {
   const fileName = basename(specifier);
   const isRelativePath =
-    specifier.startsWith("./") ?? specifier.startsWith("../");
+    specifier.startsWith("./") || specifier.startsWith("../");
 
   let result;
 
diff --git a/test/basic.test.js b/test/basic.test.js
index fd72e0b..2934bf9 100644
--- a/test/basic.test.js
+++ b/test/basic.test.js
@@ -15,4 +15,11 @@ describe("basic usage", () => {
     // No .js should be added to this import specifier
     await import("@baseplate-sdk/utils");
   });
+
+  it(`Adds extensions to ../ imports`, async () => {
+    // Parent has a ../ import in it
+    const parent = await import("./fixtures/parent/parent.js");
+    assert.equal(parent.default, "parent");
+    assert.equal(parent.val1, "val1");
+  });
 });
diff --git a/test/fixtures/parent/parent.js b/test/fixtures/parent/parent.js
new file mode 100644
index 0000000..c46dc53
--- /dev/null
+++ b/test/fixtures/parent/parent.js
@@ -0,0 +1,3 @@
+export { val1 } from "../val1";
+
+export default "parent";
diff --git a/test/fixtures/val1.js b/test/fixtures/val1.js
new file mode 100644
index 0000000..d4b8c79
--- /dev/null
+++ b/test/fixtures/val1.js
@@ -0,0 +1 @@
+export const val1 = "val1";