1 files changed, 4 insertions, 1 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/phpfpm/config_schema.json b/src/go/collectors/go.d.plugin/modules/phpfpm/config_schema.json
index 60cc0ae528..23928430f4 100644
--- a/src/go/collectors/go.d.plugin/modules/phpfpm/config_schema.json
+++ b/src/go/collectors/go.d.plugin/modules/phpfpm/config_schema.json
@@ -41,7 +41,10 @@
         "type": "string"
       },
       "headers": {
-        "type": "object",
+        "type": [
+          "object",
+          "null"
+        ],
         "additionalProperties": {
           "type": "string"
         }