diff --git a/src/infra/net/ssrf.test.ts b/src/infra/net/ssrf.test.ts
index b058e5e34..a093f4155 100644
--- a/src/infra/net/ssrf.test.ts
+++ b/src/infra/net/ssrf.test.ts
@@ -1,4 +1,5 @@
 import { describe, expect, it } from "vitest";
+import { normalizeFingerprint } from "../tls/fingerprint.js";
 import { isPrivateIpAddress } from "./ssrf.js";
 
 describe("ssrf ip classification", () => {
@@ -30,3 +31,11 @@ describe("ssrf ip classification", () => {
     expect(isPrivateIpAddress("2001:db8::1")).toBe(false);
   });
 });
+
+describe("normalizeFingerprint", () => {
+  it("strips sha256 prefixes and separators", () => {
+    expect(normalizeFingerprint("sha256:AA:BB:cc")).toBe("aabbcc");
+    expect(normalizeFingerprint("SHA-256 11-22-33")).toBe("112233");
+    expect(normalizeFingerprint("aa:bb:cc")).toBe("aabbcc");
+  });
+});
diff --git a/src/infra/tls/fingerprint.test.ts b/src/infra/tls/fingerprint.test.ts
deleted file mode 100644
index 7e0f99ec6..000000000
--- a/src/infra/tls/fingerprint.test.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-import { describe, expect, it } from "vitest";
-import { normalizeFingerprint } from "./fingerprint.js";
-
-describe("normalizeFingerprint", () => {
-  it("strips sha256 prefixes and separators", () => {
-    expect(normalizeFingerprint("sha256:AA:BB:cc")).toBe("aabbcc");
-    expect(normalizeFingerprint("SHA-256 11-22-33")).toBe("112233");
-    expect(normalizeFingerprint("aa:bb:cc")).toBe("aabbcc");
-  });
-});