diff --git a/jme3-core/src/main/java/com/jme3/shader/BufferObject.java b/jme3-core/src/main/java/com/jme3/shader/BufferObject.java
index d3ca74587..971a7d1f9 100644
--- a/jme3-core/src/main/java/com/jme3/shader/BufferObject.java
+++ b/jme3-core/src/main/java/com/jme3/shader/BufferObject.java
@@ -46,7 +46,7 @@ public class BufferObject extends NativeObject {
 
     protected static VarType getVarTypeByValue(final Object value) {
 
-        final VarType varType = CLASS_TO_VAR_TYPE.get(value);
+        final VarType varType = CLASS_TO_VAR_TYPE.get(value.getClass());
         if (varType != null) {
             return varType;
         } else if (value instanceof Collection<?> && ((Collection) value).isEmpty()) {