diff --git a/docs/openmp.md b/docs/openmp.md
index 1f0b3ac..4193127 100644
--- a/docs/openmp.md
+++ b/docs/openmp.md
@@ -8,7 +8,26 @@ program hello
   !$omp parallel
   print*,'hello',omp_get_thread_num()
   !$omp end parallel
-  print*,''
+end program hello
+```
+
+```
+$ ./a.out
+ hello           0
+ hello           7
+ hello           3
+ hello           4
+ hello           1
+ hello           2
+ hello           6
+ hello           5
+```
+
+``` bash
+program hello
+  implicit none
+  integer::omp_get_thread_num
+
   call omp_set_num_threads(4)
   !$omp parallel
   print*,'hello',omp_get_thread_num()
@@ -39,3 +58,4 @@ get : function, set : subroutine
  hello           0
  hello           1
 ```
+