diff --git a/HIRS_Utils/src/main/java/hirs/data/persist/certificate/CertificateAuthorityCredential.java b/HIRS_Utils/src/main/java/hirs/data/persist/certificate/CertificateAuthorityCredential.java
index ab428550..cbe13384 100644
--- a/HIRS_Utils/src/main/java/hirs/data/persist/certificate/CertificateAuthorityCredential.java
+++ b/HIRS_Utils/src/main/java/hirs/data/persist/certificate/CertificateAuthorityCredential.java
@@ -91,7 +91,7 @@ public class CertificateAuthorityCredential extends Certificate {
         byte[] tempBytes = getX509Certificate()
                 .getExtensionValue(SUBJECT_KEY_IDENTIFIER_EXTENSION);
 
-        if (tempBytes.length > CA_BYTE_SIZE) {
+        if (tempBytes != null && tempBytes.length > CA_BYTE_SIZE) {
             this.subjectKeyIdentifier = truncatePrefixBytes(tempBytes);
         } else {
             this.subjectKeyIdentifier =