diff --git a/CHANGELOG.md b/CHANGELOG.md
index e69de29bb2d..3adcb5c76ac 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -0,0 +1 @@
+- Fixes an issue with ext:update where local extension is incorrectly inferred as published (#3499)
diff --git a/src/test/extensions/updateHelper.spec.ts b/src/test/extensions/updateHelper.spec.ts
index 42a7777aa29..03a8e8a9c5b 100644
--- a/src/test/extensions/updateHelper.spec.ts
+++ b/src/test/extensions/updateHelper.spec.ts
@@ -599,12 +599,14 @@ describe("getExistingSourceOrigin", () => {
     isOfficialStub = sinon.stub(resolveSource, "isOfficialSource");
     isOfficialStub.returns(true);
     getInstanceStub = sinon.stub(extensionsApi, "getInstance").resolves(INSTANCE);
+
     const result = await updateHelper.getExistingSourceOrigin(
       "invader-zim",
       "instance-of-official-ext",
       "ext-testing",
       "projects/firebasemods/sources/fake-official-source"
     );
+
     expect(result).to.equal(extensionsHelper.SourceOrigin.OFFICIAL_EXTENSION);
   });
 
@@ -612,12 +614,14 @@ describe("getExistingSourceOrigin", () => {
     registryEntryStub = sinon.stub(resolveSource, "resolveRegistryEntry");
     registryEntryStub.throwsException("Entry not found");
     getInstanceStub = sinon.stub(extensionsApi, "getInstance").resolves(REGISTRY_INSTANCE);
+
     const result = await updateHelper.getExistingSourceOrigin(
       "invader-zim",
       "instance-of-registry-ext",
       "ext-testing",
       "projects/firebasemods/sources/fake-registry-source"
     );
+
     expect(result).to.equal(extensionsHelper.SourceOrigin.PUBLISHED_EXTENSION);
   });
 
@@ -625,12 +629,14 @@ describe("getExistingSourceOrigin", () => {
     registryEntryStub = sinon.stub(resolveSource, "resolveRegistryEntry");
     registryEntryStub.throwsException("Entry not found");
     getInstanceStub = sinon.stub(extensionsApi, "getInstance").resolves(LOCAL_INSTANCE);
+
     const result = await updateHelper.getExistingSourceOrigin(
       "invader-zim",
       "instance-of-local-ext",
       "ext-testing",
       "projects/firebasemods/sources/fake-local-source"
     );
+
     expect(result).to.equal(extensionsHelper.SourceOrigin.LOCAL);
   });
 
@@ -640,12 +646,14 @@ describe("getExistingSourceOrigin", () => {
     isOfficialStub = sinon.stub(resolveSource, "isOfficialSource");
     isOfficialStub.returns(false);
     getInstanceStub = sinon.stub(extensionsApi, "getInstance").resolves(LOCAL_INSTANCE);
+
     const result = await updateHelper.getExistingSourceOrigin(
       "invader-zim",
       "instance-of-local-ext",
       "ext-testing",
       "projects/firebasemods/sources/fake-local-source"
     );
+
     expect(result).to.equal(extensionsHelper.SourceOrigin.LOCAL);
   });
 });