diff --git a/CryptoPkg/Library/BaseCryptLib/Pk/CryptX509.c b/CryptoPkg/Library/BaseCryptLib/Pk/CryptX509.c
index 349d37b045fb9..628e71439e3eb 100644
--- a/CryptoPkg/Library/BaseCryptLib/Pk/CryptX509.c
+++ b/CryptoPkg/Library/BaseCryptLib/Pk/CryptX509.c
@@ -102,7 +102,6 @@ X509ConstructCertificateStackV (
 
   STACK_OF (X509)  *CertStack;
   BOOLEAN  Status;
-  UINTN    Index;
 
   //
   // Check input parameters.
@@ -124,7 +123,7 @@ X509ConstructCertificateStackV (
     }
   }
 
-  for (Index = 0; ; Index++) {
+  while (TRUE) {
     //
     // If Cert is NULL, then it is the end of the list.
     //