diff --git a/TunnelKitTests/EncryptionTests.swift b/TunnelKitTests/EncryptionTests.swift
index 7136934..c3c2be4 100644
--- a/TunnelKitTests/EncryptionTests.swift
+++ b/TunnelKitTests/EncryptionTests.swift
@@ -90,7 +90,7 @@ class EncryptionTests: XCTestCase {
     
     func testCertificateMD5() {
         let path = Bundle(for: EncryptionTests.self).path(forResource: "pia-2048", ofType: "pem")!
-        let md5 = TLSBox.md5(forCertificatePath: path)
+        let md5 = try! TLSBox.md5(forCertificatePath: path)
         let exp = "e2fccccaba712ccc68449b1c56427ac1"
         print(md5)
         XCTAssertEqual(md5, exp)