diff --git a/snippets/logstash-filters.json b/snippets/logstash-filters.json
index 6ba787d..3c06d81 100644
--- a/snippets/logstash-filters.json
+++ b/snippets/logstash-filters.json
@@ -178,7 +178,7 @@
     "prefix": "lf-grok",
     "body": [
       "grok {",
-      "\tmatch => { \"${field}\" => \"${pattern\"}",
+      "\tmatch => { \"${field}\" => \"${pattern}\" }",
       "}"
     ],
     "description": "Logstash grok Filter"
@@ -413,4 +413,4 @@
     ],
     "description": "Logstash zeromq Filter"
   }
-}
\ No newline at end of file
+}