diff --git a/Fireworks/Core/src/CmsShowCommon.cc b/Fireworks/Core/src/CmsShowCommon.cc
index 2f7e079bc40d8..c2bf2e7a09b76 100644
--- a/Fireworks/Core/src/CmsShowCommon.cc
+++ b/Fireworks/Core/src/CmsShowCommon.cc
@@ -137,10 +137,9 @@ void CmsShowCommon::permuteColors() {
 void CmsShowCommon::randomizeColors() {
   //   printf("Doing random_shuffle on existing colors ...\n");
 
-  int vi = 0;
   for (FWEventItemsManager::const_iterator i = m_context->eventItemsManager()->begin();
        i != m_context->eventItemsManager()->end();
-       ++i, ++vi) {
+       ++i) {
     FWDisplayProperties prop = (*i)->defaultDisplayProperties();
 
     int col = rand() % 17;  // randomize in first row of palette
diff --git a/Fireworks/Core/src/FWModelChangeManager.cc b/Fireworks/Core/src/FWModelChangeManager.cc
index 0b19a447468d8..e9d2928cb202b 100644
--- a/Fireworks/Core/src/FWModelChangeManager.cc
+++ b/Fireworks/Core/src/FWModelChangeManager.cc
@@ -85,9 +85,8 @@ void FWModelChangeManager::endChanges() {
   //makes sure that 'changeSignalsAreDone is called if changeSignalsAreComing_ is sent
   bool guard(false);
   if (0 == --m_depth) {
-    unsigned int index = 0;
     for (std::set<const FWEventItem*>::iterator itChanges = m_itemChanges.begin(); itChanges != m_itemChanges.end();
-         ++itChanges, ++index) {
+         ++itChanges) {
       if (!guard) {
         // std::shared_ptr<FWModelChangeManager> done(this, &sendChangeSignalsAreDone);
         guard = true;
@@ -109,7 +108,7 @@ void FWModelChangeManager::endChanges() {
     }
     m_itemChanges.clear();
 
-    for (size_t ci = 0, ce = m_changes.size(), si = 0; ci != ce; ++ci, ++si) {
+    for (size_t ci = 0, ce = m_changes.size(); ci != ce; ++ci) {
       FWModelIds& changes = m_changes[ci];
       if (not changes.empty()) {
         if (!guard) {
diff --git a/Fireworks/ParticleFlow/plugins/FWPFCandidateWithHitsProxyBuilder.cc b/Fireworks/ParticleFlow/plugins/FWPFCandidateWithHitsProxyBuilder.cc
index 6f85bf1b82c77..da8dcc2e1cfce 100644
--- a/Fireworks/ParticleFlow/plugins/FWPFCandidateWithHitsProxyBuilder.cc
+++ b/Fireworks/ParticleFlow/plugins/FWPFCandidateWithHitsProxyBuilder.cc
@@ -75,10 +75,9 @@ void FWPFCandidateWithHitsProxyBuilder::build(const FWEventItem* iItem,
   if (candidates == nullptr)
     return;
 
-  Int_t idx = 0;
   initPFRecHitsCollections();
   for (reco::PFCandidateCollection::const_iterator it = candidates->begin(), itEnd = candidates->end(); it != itEnd;
-       ++it, ++idx) {
+       ++it) {
     TEveCompound* comp = createCompound();
     setupAddElement(comp, product);
     // printf("products size %d/%d \n", (int)iItem->size(), product->NumChildren());