2 files changed, 2 insertions, 4 deletions
diff --git a/Source/Particles/Pusher/UpdateMomentumBoris.H b/Source/Particles/Pusher/UpdateMomentumBoris.H
index 71e9a8ed1..a33058347 100644
--- a/Source/Particles/Pusher/UpdateMomentumBoris.H
+++ b/Source/Particles/Pusher/UpdateMomentumBoris.H
@@ -7,7 +7,7 @@
  *    given the value of its momenta `ux`, `uy`, `uz` */
 AMREX_GPU_HOST_DEVICE AMREX_INLINE
 void UpdateMomentumBoris(
-    amrex::Real& ux, amrex::Real& uy, amrex::Real& uz, amrex::Real& gaminv,
+    amrex::Real& ux, amrex::Real& uy, amrex::Real& uz,
     const amrex::Real Ex, const amrex::Real Ey, const amrex::Real Ez,
     const amrex::Real Bx, const amrex::Real By, const amrex::Real Bz,
     const amrex::Real q, const amrex::Real m, const amrex::Real dt )
@@ -41,7 +41,6 @@ void UpdateMomentumBoris(
     ux += econst*Ex;
     uy += econst*Ey;
     uz += econst*Ez;
-    gaminv = 1./std::sqrt(1. + (ux*ux + uy*uy + uz*uz)*inv_c2);
 }
 
 #endif // WARPX_PARTICLES_PUSHER_UPDATEMOMENTUM_BORIS_H_
diff --git a/Source/Particles/Pusher/UpdateMomentumVay.H b/Source/Particles/Pusher/UpdateMomentumVay.H
index 044297e22..1f0f19e63 100644
--- a/Source/Particles/Pusher/UpdateMomentumVay.H
+++ b/Source/Particles/Pusher/UpdateMomentumVay.H
@@ -9,7 +9,7 @@
  *    given the value of its momenta `ux`, `uy`, `uz` */
 AMREX_GPU_HOST_DEVICE AMREX_INLINE
 void UpdateMomentumVay(
-    amrex::Real& ux, amrex::Real& uy, amrex::Real& uz, amrex::Real& gaminv,
+    amrex::Real& ux, amrex::Real& uy, amrex::Real& uz,
     const amrex::Real Ex, const amrex::Real Ey, const amrex::Real Ez,
     const amrex::Real Bx, const amrex::Real By, const amrex::Real Bz,
     const amrex::Real q, const amrex::Real m, const amrex::Real dt )
@@ -48,7 +48,6 @@ void UpdateMomentumVay(
     ux = s*(uxpr+tx*tu+uypr*tz-uzpr*ty);
     uy = s*(uypr+ty*tu+uzpr*tx-uxpr*tz);
     uz = s*(uzpr+tz*tu+uxpr*ty-uypr*tx);
-    gaminv = 1./std::sqrt(1. + (ux*ux + uy*uy + uz*uz)*invclightsq);
 }
 
 #endif // WARPX_PARTICLES_PUSHER_UPDATEMOMENTUM_VAY_H_