diff --git a/scripts/run_experiments.jl b/scripts/run_experiments.jl
index 73f63623fc5bf4135a3e295ffa47239c50f0c1c8..c04231b699806726e3b7fe57d2e43847c344bd40 100644
--- a/scripts/run_experiments.jl
+++ b/scripts/run_experiments.jl
@@ -316,7 +316,7 @@ function experiment_scaling_opticalflow(ctx)
 
     CSV.write(joinpath(ctx.outdir, "timings.csv"), df)
     #saveimg(joinpath(ctx.outdir, "output_glob.png"), fetch_u(states.glob))
-    savedata(ctx, "data.tex"; lambda=λ, beta=β, Mdir,
+    savedata(ctx, "data.tex"; lambda=λ, beta=β, Mdir, M=prod(M),
         ntimings, stopenergy, ninner,
         width=size(fo, 2), height=size(fo, 1))
 end