diff --git a/src/signed-xml.ts b/src/signed-xml.ts
index ca19db7..e5d80af 100644
--- a/src/signed-xml.ts
+++ b/src/signed-xml.ts
@@ -149,8 +149,8 @@ export class SignedXml {
     }
     this.implicitTransforms = implicitTransforms ?? this.implicitTransforms;
     this.keyInfoAttributes = keyInfoAttributes ?? this.keyInfoAttributes;
-    this.getKeyInfoContent = getKeyInfoContent ?? SignedXml.noop;
-    this.getCertFromKeyInfo = getCertFromKeyInfo ?? this.getCertFromKeyInfo;
+    this.getKeyInfoContent = getKeyInfoContent ?? this.getKeyInfoContent;
+    this.getCertFromKeyInfo = getCertFromKeyInfo ?? SignedXml.noop;
     this.CanonicalizationAlgorithms;
     this.HashAlgorithms;
     this.SignatureAlgorithms;
diff --git a/test/document-tests.spec.ts b/test/document-tests.spec.ts
index 0ade323..fc321c9 100644
--- a/test/document-tests.spec.ts
+++ b/test/document-tests.spec.ts
@@ -47,6 +47,7 @@ describe("Validated node references tests", function () {
     const xml = fs.readFileSync("./test/static/valid_saml.xml", "utf-8");
     const doc = new xmldom.DOMParser().parseFromString(xml);
     const sig = new SignedXml();
+    sig.getCertFromKeyInfo = SignedXml.getCertFromKeyInfo
     sig.loadSignature(sig.findSignatures(doc)[0]);
     const validSignature = sig.checkSignature(xml);
     expect(validSignature).to.be.true;
@@ -73,6 +74,7 @@ describe("Validated node references tests", function () {
     const xml = fs.readFileSync("./test/static/valid_saml.xml", "utf-8");
     const doc = new xmldom.DOMParser().parseFromString(xml);
     const sig = new SignedXml();
+    sig.getCertFromKeyInfo = SignedXml.getCertFromKeyInfo
     sig.loadSignature(sig.findSignatures(doc)[0]);
     const validSignature = sig.checkSignature(xml);
     expect(validSignature).to.be.true;
@@ -86,6 +88,7 @@ describe("Validated node references tests", function () {
     const xml = fs.readFileSync("./test/static/valid_saml.xml", "utf-8");
     const doc = new xmldom.DOMParser().parseFromString(xml);
     const sig = new SignedXml();
+    sig.getCertFromKeyInfo = SignedXml.getCertFromKeyInfo
     sig.loadSignature(sig.findSignatures(doc)[0]);
     const validSignature = sig.checkSignature(xml);
     expect(validSignature).to.be.true;
diff --git a/test/key-info-tests.spec.ts b/test/key-info-tests.spec.ts
index 5e138e6..19c8f4a 100644
--- a/test/key-info-tests.spec.ts
+++ b/test/key-info-tests.spec.ts
@@ -13,7 +13,6 @@ describe("KeyInfo tests", function () {
     sig.publicCert = fs.readFileSync("./test/static/client_public.pem");
     sig.canonicalizationAlgorithm = "http://www.w3.org/2001/10/xml-exc-c14n#";
     sig.signatureAlgorithm = "http://www.w3.org/2000/09/xmldsig#rsa-sha1";
-    sig.getKeyInfoContent = SignedXml.getKeyInfoContent;
     sig.computeSignature(xml);
     const signedXml = sig.getSignedXml();
     const doc = new xmldom.DOMParser().parseFromString(signedXml);
diff --git a/test/signature-unit-tests.spec.ts b/test/signature-unit-tests.spec.ts
index bbb0c9f..0db89a4 100644
--- a/test/signature-unit-tests.spec.ts
+++ b/test/signature-unit-tests.spec.ts
@@ -534,7 +534,6 @@ describe("Signature unit tests", function () {
     sig.signatureAlgorithm = "http://dummySignatureAlgorithm";
     sig.canonicalizationAlgorithm = "http://DummyCanonicalization";
     sig.privateKey = "";
-    sig.getKeyInfoContent = SignedXml.getKeyInfoContent;
 
     sig.addReference({
       xpath: "//*[local-name(.)='x']",
@@ -1237,7 +1236,6 @@ describe("Signature unit tests", function () {
     sig.publicCert = pemBuffer;
     sig.canonicalizationAlgorithm = "http://www.w3.org/2001/10/xml-exc-c14n#";
     sig.signatureAlgorithm = "http://www.w3.org/2000/09/xmldsig#rsa-sha1";
-    sig.getKeyInfoContent = SignedXml.getKeyInfoContent;
     sig.computeSignature(xml);
     const signedXml = sig.getSignedXml();