diff --git a/R/cats_analysis.R b/R/cats_analysis.R
index 39f8da1b9d6b76ed9ada29ec0732c94616e6f460..8c7c5e2699f7e1ac0d275742a399d80ab807a13e 100644
--- a/R/cats_analysis.R
+++ b/R/cats_analysis.R
@@ -185,5 +185,6 @@ plot_cats_run <- function(results, catsconfig, run.name = NULL, replicate = 0) {
         #    graphics::par(old_par)
         #}
     #)
+    graphics::par(old_par)
     return(invisible(NULL))
 }