diff --git a/Exec/science/flame_wave/inputs_3d.testsuite.gpu b/Exec/science/flame_wave/inputs_3d.testsuite.gpu
index 030bef8aba..2024847e4e 100644
--- a/Exec/science/flame_wave/inputs_3d.testsuite.gpu
+++ b/Exec/science/flame_wave/inputs_3d.testsuite.gpu
@@ -100,7 +100,7 @@ problem.T_hi = 2.e8
 problem.T_lo   = 8.e6
 
 problem.H_star = 2000.e0
-problem.atm_delta  = 50.0
+problem.atm_delta  = 100.0
 
 problem.fuel1_name = "helium-4"
 problem.fuel1_frac = 1.0e0