diff --git a/docs.it4i/software/viz/insitu.md b/docs.it4i/software/viz/insitu.md
index 0de1f97d4ba40da9608f720bab0cb5e51ede5b2c..84869ff0ef70b7ea7cb6c3511a334f75a4120dd3 100644
--- a/docs.it4i/software/viz/insitu.md
+++ b/docs.it4i/software/viz/insitu.md
@@ -49,13 +49,13 @@ Provided example is a simple MPI program. Main executing part is written in FEDr
 
 
 ```c++
-#include ahoj.h
-
-int main() {
-
-
-return 0;
-}
+1 #include ahoj.h
+2
+3 int main() {
+4
+5
+6 return 0;
+7 }
 ```
 
 mpirun -n 2 ./CxxFullExample 30 30 30 ../SampleScripts/feslicescript.py