diff --git a/runtime/syntax/groovy.yaml b/runtime/syntax/groovy.yaml
index c8d310c3..3aa0e283 100644
--- a/runtime/syntax/groovy.yaml
+++ b/runtime/syntax/groovy.yaml
@@ -1,7 +1,7 @@
 filetype: groovy
 
 detect:
-    filename: "\\.(groovy|gy|gvy|gsh|gradle)$"
+    filename: "(\\.(groovy|gy|gvy|gsh|gradle)$|^[Jj]enkinsfile$)"
     header: "^#!.*/(env +)?groovy *$"
 
 rules: