diff --git a/src/it/groovy/README.md b/src/it/groovy/README.md
index eff85a9..2c904b1 100644
--- a/src/it/groovy/README.md
+++ b/src/it/groovy/README.md
@@ -4,9 +4,9 @@ This module contains integration tests for `jcabi-xml` usage in Groovy scripts.
 
 To run the tests, execute the following command:
 
-```shell
+```bash
 mvn clean integration-test invoker:run -Dinvoker.test=groovy -DskipTests
 ```
 
 The testing Groovy code you can find in the [verify.groovy](verify.groovy)
-script.
\ No newline at end of file
+script.