diff --git a/lib/db/install.xml b/lib/db/install.xml
index 5989a214c87..e947ca7aa8b 100644
--- a/lib/db/install.xml
+++ b/lib/db/install.xml
@@ -3630,7 +3630,7 @@
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
         <FIELD NAME="modelid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
         <FIELD NAME="analysableid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
-        <FIELD NAME="timesplitting" TYPE="char" LENGTH="50" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="timesplitting" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false"/>
         <FIELD NAME="fileid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
         <FIELD NAME="sampleids" TYPE="text" NOTNULL="true" SEQUENCE="false"/>
         <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
@@ -3647,7 +3647,7 @@
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
         <FIELD NAME="modelid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
         <FIELD NAME="analysableid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
-        <FIELD NAME="timesplitting" TYPE="char" LENGTH="50" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="timesplitting" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false"/>
         <FIELD NAME="rangeindex" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
         <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
       </FIELDS>
diff --git a/lib/db/upgrade.php b/lib/db/upgrade.php
index 180eb245d88..876ac445c55 100644
--- a/lib/db/upgrade.php
+++ b/lib/db/upgrade.php
@@ -2075,7 +2075,7 @@ function xmldb_main_upgrade($oldversion) {
         $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
         $table->add_field('modelid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
         $table->add_field('analysableid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
-        $table->add_field('timesplitting', XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, null, null);
+        $table->add_field('timesplitting', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
         $table->add_field('fileid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
         $table->add_field('sampleids', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
         $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
@@ -2098,7 +2098,7 @@ function xmldb_main_upgrade($oldversion) {
         $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
         $table->add_field('modelid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
         $table->add_field('analysableid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
-        $table->add_field('timesplitting', XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, null, null);
+        $table->add_field('timesplitting', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
         $table->add_field('rangeindex', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
         $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');