diff --git a/GeneratorInterface/RivetInterface/src/CMS_2013_I1224539_DIJET.cc b/GeneratorInterface/RivetInterface/src/CMS_2013_I1224539_DIJET.cc
index c4e1c974e9ee6..06a8a0cdb3793 100644
--- a/GeneratorInterface/RivetInterface/src/CMS_2013_I1224539_DIJET.cc
+++ b/GeneratorInterface/RivetInterface/src/CMS_2013_I1224539_DIJET.cc
@@ -30,7 +30,7 @@ namespace Rivet {
     //@{
 
     /// Book histograms and initialise projections before the run
-    void init() {
+    void init() override {
       FinalState fs((Cuts::etaIn(-2.4, 2.4)));
       declare(fs, "FS");
 
@@ -60,7 +60,7 @@ namespace Rivet {
     }
 
     /// Perform the per-event analysis
-    void analyze(const Event& event) {
+    void analyze(const Event& event) override {
       const double weight = 1.0;
 
       // Look at events with >= 2 jets
@@ -94,7 +94,7 @@ namespace Rivet {
     }
 
     /// Normalise histograms etc., after the run
-    void finalize() {
+    void finalize() override {
       const double normalizationVal = 1000;
       for (size_t i = 0; i < N_PT_BINS_dj; ++i) {
         normalize(_h_ungroomedAvgJetMass_dj[i], normalizationVal);