diff --git a/install/tpl/apache_ispconfig.conf.master b/install/tpl/apache_ispconfig.conf.master
index 24fb9dc285b46facd00df0a492d0a6ec49dbbb6a..90db9c1e258addddb5f64c48891afd7977c51281 100644
--- a/install/tpl/apache_ispconfig.conf.master
+++ b/install/tpl/apache_ispconfig.conf.master
@@ -14,8 +14,8 @@ SSLStaplingCache shmcb:/var/run/ocsp(128000)
 # ISPConfig Logfile configuration for vlogger
 ################################################
 
-<tmpl_if name='apache_version' op='>=' value='2.4.7' format='version'>
-LogFormat "%v %h %l %u %t \"%r\" %>s %S \"%{Referer}i\" \"%{User-Agent}i\"" combined_ispconfig
+<tmpl_if name='apache_version' op='>=' value='2.5' format='version'>
+LogFormat '%v %h %l %u %t "%r" %>s %S "%{Referer}i" "%{User-Agent}i"' combined_ispconfig
 <tmpl_else>
 LogFormat "%v %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined_ispconfig
 </tmpl_if>
diff --git a/server/conf/apache_ispconfig.conf.master b/server/conf/apache_ispconfig.conf.master
index 24fb9dc285b46facd00df0a492d0a6ec49dbbb6a..90db9c1e258addddb5f64c48891afd7977c51281 100644
--- a/server/conf/apache_ispconfig.conf.master
+++ b/server/conf/apache_ispconfig.conf.master
@@ -14,8 +14,8 @@ SSLStaplingCache shmcb:/var/run/ocsp(128000)
 # ISPConfig Logfile configuration for vlogger
 ################################################
 
-<tmpl_if name='apache_version' op='>=' value='2.4.7' format='version'>
-LogFormat "%v %h %l %u %t \"%r\" %>s %S \"%{Referer}i\" \"%{User-Agent}i\"" combined_ispconfig
+<tmpl_if name='apache_version' op='>=' value='2.5' format='version'>
+LogFormat '%v %h %l %u %t "%r" %>s %S "%{Referer}i" "%{User-Agent}i"' combined_ispconfig
 <tmpl_else>
 LogFormat "%v %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined_ispconfig
 </tmpl_if>