diff --git a/extensions/groovy/package.json b/extensions/groovy/package.json
index ab2ef0da7ba..f3a0cc17ec8 100644
--- a/extensions/groovy/package.json
+++ b/extensions/groovy/package.json
@@ -13,7 +13,7 @@
 		"languages": [{
 			"id": "groovy",
 			"aliases": ["Groovy", "groovy"],
-      "extensions": [".groovy", ".gvy", ".gradle", ".jenkinsfile"],
+      "extensions": [".groovy", ".gvy", ".gradle", ".jenkinsfile", ".nf"],
       "filenamePatterns": ["Jenkinsfile.*"],
 			"firstLine": "^#!.*\\bgroovy\\b",
 			"configuration": "./language-configuration.json"