diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/file/Structure.java b/engine/src/blender/com/jme3/scene/plugins/blender/file/Structure.java
index 3a6efc2fa..9e70efc9f 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/file/Structure.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/file/Structure.java
@@ -316,7 +316,7 @@ public class Structure implements Cloneable {
         /**
          * @return a collection of known primary types names
          */
-        /* package */Collection<String> getKnownPrimaryTypesNames() {
+        /* package */static Collection<String> getKnownPrimaryTypesNames() {
             return PRIMARY_TYPES.keySet();
         }
     }