diff --git a/manifests/web.pp b/manifests/web.pp
index bd6ff23f2..cf871faab 100644
--- a/manifests/web.pp
+++ b/manifests/web.pp
@@ -235,6 +235,15 @@
     }
     'RedHat': {
       $zabbix_web_package = 'zabbix-web'
+
+      # Oracle Linux 7 has some PHP dependencies (bcmath, mbstring) in a special repository
+      if ($facts['os']['name'] == 'OracleLinux' and $facts['os']['release']['major'] == '7' and $zabbix_version == '4.0') {
+        package { 'oracle-php-release-el7':
+          ensure  => $zabbix_package_state,
+          before  => Package[$zabbix_web_package],
+        }
+      }
+
       if ($facts['os']['release']['major'] == '7' and versioncmp($zabbix_version, '5.0') >= 0) {
         package { "zabbix-web-${db}-scl":
           ensure  => $zabbix_package_state,