diff --git a/ChangeLog b/ChangeLog
index d419591..061ec5d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,8 +1,9 @@
-2017-07-07
+2017-07-11
 
         * Bug fix version 1.3.1 released
         ================================
 
+        ctbkgcube creates XML files compliant with non-CTA instruments (#2140)
         Reduce computation time of ctmodel and parallelize using OpenMP (#2147)
         Fix csresmap significance computation error (#2136)
         Use MigMatrixNoTheta2cut_offaxis and AngularPSF2DEtrue_offaxis histograms to
diff --git a/NEWS b/NEWS
index 3aa40b1..1747d08 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,6 @@
 New Features and Important Changes in ctools 1.3.1
 
-7 July 2017
+11 July 2017
 
 
 Introduction
@@ -79,7 +79,13 @@ None
 
 ctbkgcube - CTA background cube generation
 ------------------------------------------
-None
+The XML file created echoed the instruments that were found in the
+input XML file but this created some problems when using ctmodel on
+data created with ctobssim which always generates CTA data. A clean
+fix of the problem requires a proper handling of the TELESCOP keywords
+in all classes that read event and IRF information. For the moment a
+quick fix is to add all possible VHE instruments as attribute to the
+XML file (#2140).
 
 
 ctmapcube - CTA map cube generation
diff --git a/src/ctbkgcube/ctbkgcube.cpp b/src/ctbkgcube/ctbkgcube.cpp
index 9e02ddd..7bb7ea5 100644
--- a/src/ctbkgcube/ctbkgcube.cpp
+++ b/src/ctbkgcube/ctbkgcube.cpp
@@ -315,7 +315,8 @@ void ctbkgcube::run(void)
     model.name("BackgroundModel");
 
     // Set model instruments
-    model.instruments(instruments);
+    //model.instruments(instruments);
+    model.instruments("CTA,HESS,MAGIC,VERITAS"); // Temporary fix for #2140
 
     // Append model to output container
     m_outmdl.append(model);