diff --git a/R/poster.Rmd b/R/poster.Rmd
index be15f0b..c74e96d 100644
--- a/R/poster.Rmd
+++ b/R/poster.Rmd
@@ -72,7 +72,7 @@
 ---
 
 ```{r setup, include=FALSE, echo=FALSE, warning=FALSE}
-knitr::opts_chunk$set(echo = FALSE, warnings = FALSE)
+knitr::opts_chunk$set(dev = 'svg', echo = FALSE, warnings = FALSE)
 source("common.R")
 ```
 # ICC aims & charcteristics
