diff --git a/pkg/kamailio/obs/kamailio.spec b/pkg/kamailio/obs/kamailio.spec
index 42c9bce60a0..5a848948632 100644
--- a/pkg/kamailio/obs/kamailio.spec
+++ b/pkg/kamailio/obs/kamailio.spec
@@ -736,8 +736,12 @@ BuildRequires:  zlib-devel
 Requires:   libmysqlclient18
 BuildRequires:  libmysqlclient-devel
 %else
+%if 0%{?rhel} == 6
+BuildRequires:  mysql-devel
+%else
 BuildRequires:  mariadb-devel
 %endif
+%endif
 
 %description    mysql
 MySQL database connectivity for Kamailio.