diff --git a/packages/nodejs/.changesets/fix-extension-fallback-functions.md b/packages/nodejs/.changesets/fix-extension-fallback-functions.md
new file mode 100644
index 00000000..09c1c968
--- /dev/null
+++ b/packages/nodejs/.changesets/fix-extension-fallback-functions.md
@@ -0,0 +1,6 @@
+---
+bump: "patch"
+type: "fix"
+---
+
+Fix the extension function fallbacks on installation failure. When the extension fails to install and calls are made to the not loaded functions, it will no longer throw an error.
diff --git a/packages/nodejs/src/__tests__/extension.failure.test.ts b/packages/nodejs/src/__tests__/extension.failure.test.ts
index b4738e63..2c7b8fb7 100644
--- a/packages/nodejs/src/__tests__/extension.failure.test.ts
+++ b/packages/nodejs/src/__tests__/extension.failure.test.ts
@@ -30,4 +30,15 @@ describe("Extension", () => {
       ext.stop()
     }).not.toThrow()
   })
+
+  it("does not error on diagnoseRaw", () => {
+    expect(ext.diagnose()).toMatchObject({
+      error: expect.any(Error),
+      output: [""]
+    })
+  })
+
+  it("does not error on runningInContainer", () => {
+    expect(ext.runningInContainer()).toBeUndefined()
+  })
 })
diff --git a/packages/nodejs/src/extension.ts b/packages/nodejs/src/extension.ts
index bf12b261..7562e3cf 100644
--- a/packages/nodejs/src/extension.ts
+++ b/packages/nodejs/src/extension.ts
@@ -48,7 +48,7 @@ export class Extension {
     } catch (error) {
       return {
         error: error,
-        output: diagnostics_report_string.split("\n")
+        output: (diagnostics_report_string || "").split("\n")
       }
     }
   }
diff --git a/packages/nodejs/src/extension_wrapper.ts b/packages/nodejs/src/extension_wrapper.ts
index c2510d97..44d16e5d 100644
--- a/packages/nodejs/src/extension_wrapper.ts
+++ b/packages/nodejs/src/extension_wrapper.ts
@@ -12,9 +12,9 @@ try {
       start() {
         throw new Error("Extension module not loaded")
       },
-      stop() {
-        return
-      }
+      stop() {},
+      diagnoseRaw() {},
+      runningInContainer() {}
     }
   } as ExtensionWrapper
 }