diff --git a/library/x509_crt.c b/library/x509_crt.c
index 20ca51bea7..6b5ac08042 100644
--- a/library/x509_crt.c
+++ b/library/x509_crt.c
@@ -802,7 +802,7 @@ static int x509_get_authority_key_id( unsigned char** p,
         }
         else
         {
-            /* Getting directoryName using the required specific class tag [4] *
+            /* Getting directoryName using the required specific class tag [4] */
             if ((ret = mbedtls_asn1_get_tag(p, end, &len,
                 MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 4 ) ) != 0)
             {