diff --git a/fixtures/ldap/install_slapd.sh b/fixtures/ldap/install_slapd.sh
index 258721d..63df6a5 100755
--- a/fixtures/ldap/install_slapd.sh
+++ b/fixtures/ldap/install_slapd.sh
@@ -115,6 +115,7 @@ chmod 0400 $SLAPD_CERT
 
 
 ldapmodify -Y EXTERNAL -H ldapi:/// << EOF
+dn: cn=config
 add: olcTLSCACertificateFile
 olcTLSCACertificateFile: "${SLAPD_CERT}"
 -