diff --git a/exercices/07_executor_reactor/Makefile b/exercices/07_executor_reactor/Makefile
index 532f140d5166359ec92d8f6310735a5567bfe39c..0c6ed1d2b896c16e96e7f5119f67ba2e13755fbc 100644
--- a/exercices/07_executor_reactor/Makefile
+++ b/exercices/07_executor_reactor/Makefile
@@ -1,7 +1,7 @@
 OPTIONS = --filter=pandoc-crossref
 
 PDFOPTIONS = --highlight-style kate
-PDFOPTIONS += --pdf-engine pdflatex
+PDFOPTIONS += --pdf-engine xelatex
 PDFOPTIONS += --number-sections