diff --git a/certs/host/host.conf b/certs/host/host.conf
index e7cd57c..38875c6 100644
--- a/certs/host/host.conf
+++ b/certs/host/host.conf
@@ -14,7 +14,7 @@ L="Seoul"
 O="SCOPE.Inc"
 OU="SCOPE Lab"
 emailAddress="jay3920@scope.co.kr"
-CN="Invalid Test"
+CN="Jay Test Certificate"
 
 [req_ext]
 subjectAltName = @alt_names
diff --git a/certs/ica/ica.conf b/certs/ica/ica.conf
index f94175a..6917783 100644
--- a/certs/ica/ica.conf
+++ b/certs/ica/ica.conf
@@ -70,7 +70,7 @@ x509_extensions     = v3_ca
 # See <https://en.wikipedia.org/wiki/Certificate_signing_request>.
 countryName                     = KR
 stateOrProvinceName             = Seoul
-localityName                    = seoul
+localityName                    = Seoul
 0.organizationName              = SCOPE.Inc
 organizationalUnitName          = SCOPE Lab
 commonName                      = SCOPE ICA (Lab)
diff --git a/certs/rootca/rootca.conf b/certs/rootca/rootca.conf
index 5641215..13439e4 100644
--- a/certs/rootca/rootca.conf
+++ b/certs/rootca/rootca.conf
@@ -64,13 +64,13 @@ encrypt_key       = no
 default_md          = sha256
 
 # Extension to add when the -x509 option is used.
-req_extensions     = v3_ca
+x509_extensions     = v3_ca
 
 [ req_distinguished_name ]
 # See <https://en.wikipedia.org/wiki/Certificate_signing_request>.
 countryName                     = KR
 stateOrProvinceName             = Seoul
-localityName                    = seoul
+localityName                    = Seoul
 0.organizationName              = SCOPE.Inc
 organizationalUnitName          = SCOPE.Inc
 commonName                      = SCOPE Self Sign CA