diff --git a/contrib/mobile/Android/src/org/geuz/onelab/ParameterNumber.java b/contrib/mobile/Android/src/org/geuz/onelab/ParameterNumber.java
index c04102a4ef4e38eec340bbf62846f80d83174a94..1af1f3406dc5c3e66ef450bafc5e86eddc1a5b04 100644
--- a/contrib/mobile/Android/src/org/geuz/onelab/ParameterNumber.java
+++ b/contrib/mobile/Android/src/org/geuz/onelab/ParameterNumber.java
@@ -185,7 +185,7 @@ public class ParameterNumber extends Parameter {
         LinearLayout paramLayout = new LinearLayout(_context);
         paramLayout.setOrientation(LinearLayout.VERTICAL);
         paramLayout.addView(_title);
-        paramLayout.setOnLongClickListener(new View.OnLongClickListener(){
+        if(!_readOnly) paramLayout.setOnLongClickListener(new View.OnLongClickListener(){
                 @Override
                 public boolean onLongClick(View v){
 			AlertDialog.Builder builder = new AlertDialog.Builder(_context);