diff --git a/libraries/classes/Plugins/Export/ExportJson.php b/libraries/classes/Plugins/Export/ExportJson.php
index 679f16f6fa..27a2dc3250 100644
--- a/libraries/classes/Plugins/Export/ExportJson.php
+++ b/libraries/classes/Plugins/Export/ExportJson.php
@@ -240,6 +240,7 @@ class ExportJson extends ExportPlugin
             DatabaseInterface::QUERY_UNBUFFERED
         );
         $columns_cnt = $GLOBALS['dbi']->numFields($result);
+        $fields_meta = $GLOBALS['dbi']->getFieldsMeta($result);
 
         $columns = array();
         for ($i = 0; $i < $columns_cnt; $i++) {
@@ -265,6 +266,10 @@ class ExportJson extends ExportPlugin
             $data = array();
 
             for ($i = 0; $i < $columns_cnt; $i++) {
+                if ($fields_meta[$i]->type === 'geometry') {
+                    // export GIS types as hex
+                    $record[$i] = '0x' . bin2hex($record[$i]);
+                }
                 $data[$columns[$i]] = $record[$i];
             }