1 files changed, 2 insertions, 2 deletions
diff --git a/Source/Particles/WarpXParticleContainer.cpp b/Source/Particles/WarpXParticleContainer.cpp
index 1d057f5a2..ca9b99500 100644
--- a/Source/Particles/WarpXParticleContainer.cpp
+++ b/Source/Particles/WarpXParticleContainer.cpp
@@ -783,8 +783,8 @@ Real WarpXParticleContainer::sumParticleCharge(bool local) {
         for (WarpXParIter pti(*this, lev); pti.isValid(); ++pti)
         {
             auto& wp = pti.GetAttribs(PIdx::w);
-            for (unsigned long i = 0; i < wp.size(); i++) {
-                total_charge += wp[i];
+            for (const auto& tt : wp) {
+                total_charge += tt;
             }
         }
     }