diff --git a/grammars/packer.yaml b/grammars/packer.yaml
index 8eec603..c94db73 100644
--- a/grammars/packer.yaml
+++ b/grammars/packer.yaml
@@ -190,6 +190,21 @@ patterns:
       # - match: '\b(for_each|dynamic|iterator|labels|content)\b'
       #   captures:
       #     1: { name: keyword.control.loop.packer }
+      - name: meta.post_processor.packer
+        begin: \b(post-processor)(?:\s+)(")([^"\r\n]+)(")(?:\s+)?({)
+        beginCaptures:
+          1: { name: keyword.declaration.post-processor.packer }
+          2: { name: punctuation.definition.string.begin.packer }
+          3: { name: string.quoted.double.packer entity.name.post_processor.packer }
+          4: { name: punctuation.definition.string.end.packer }
+          5: { name: punctuation.declaration.block.begin.packer }
+        end: '}'
+        endCaptures:
+          0: { name: punctuation.declaration.block.end.packer }
+        patterns:
+          - include: '#comments'
+          - include: '#definition-right'
+
       - include: '#definition-right'
   - include: '#invalid'
 repository:
diff --git a/package.json b/package.json
index ee4f0bf..5cf31b8 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
 	"name": "packer",
 	"displayName": "Packer",
 	"description": "Packer configuration language support",
-	"version": "0.3.0",
+	"version": "0.3.1",
 	"icon": "icon.png",
 	"categories": [
 		"Programming Languages"
@@ -68,8 +68,8 @@
 	"scripts": {
 		"ci-build": "vsce package",
 		"build": "vsce package",
-		"compile-packer": "yq eval grammars/packer.yaml --tojson > grammars/packer.json",
-		"compile-packervars": "yq eval grammars/packervars.yaml --tojson > grammars/packervars.json",
+		"compile-packer": "yq eval grammars/packer.yaml -o=json > grammars/packer.json",
+		"compile-packervars": "yq eval grammars/packervars.yaml -o=json > grammars/packervars.json",
 		"compile": "npm run compile-packer && npm run compile-packervars",
 		"pretest": "npm run compile -s",
 		"prebuild": "npm test -s",