diff --git a/sdk/jme3-ogretools/src/com/jme3/gde/ogretools/convert/OgreXMLConvert.java b/sdk/jme3-ogretools/src/com/jme3/gde/ogretools/convert/OgreXMLConvert.java
index 13a0a0863..58e7f2033 100644
--- a/sdk/jme3-ogretools/src/com/jme3/gde/ogretools/convert/OgreXMLConvert.java
+++ b/sdk/jme3-ogretools/src/com/jme3/gde/ogretools/convert/OgreXMLConvert.java
@@ -140,6 +140,8 @@ public class OgreXMLConvert {
 
         if (options.isGenerateTangents()) {
             strings.add("-t");
+            strings.add("-ts");
+            strings.add("4");
         }
         if (!options.isGenerateEdgeLists()) {
             strings.add("-e");