diff --git a/Regression/WarpX-tests.ini b/Regression/WarpX-tests.ini
index e7219e11239..fb3cb4db044 100644
--- a/Regression/WarpX-tests.ini
+++ b/Regression/WarpX-tests.ini
@@ -2022,7 +2022,7 @@ analysisRoutine = Examples/analysis_default_regression.py
 [LaserAccelerationBoost]
 buildDir = .
 inputFile = Examples/Physics_applications/laser_acceleration/inputs_2d_boost
-runtime_params = warpx.do_dynamic_scheduling=0 warpx.serialize_initial_conditions=1 amr.n_cell=64 512 max_step=20 diag.ions.variables= w uy uz
+runtime_params = warpx.do_dynamic_scheduling=0 warpx.serialize_initial_conditions=1 amr.n_cell=64 512 max_step=20 diag1.ions.variables= w uy uz
 dim = 2
 addToCompileString =
 cmakeSetupOpts = -DWarpX_DIMS=2