diff --git a/docs/external_api/file_manager.md b/docs/external_api/file_manager.md
index 4293d476..02443ebc 100644
--- a/docs/external_api/file_manager.md
+++ b/docs/external_api/file_manager.md
@@ -214,7 +214,7 @@ GET /server/files/metadata?filename=tools/drill.gcode
     "size": 1629418,
     "modified": 1706359465.4947228,
     "uuid": "473a41d2-15f4-434b-aeb4-ab96eb122bbf",
-    "file processors": [],
+    "file_processors": [],
     "slicer": "PrusaSlicer",
     "slicer_version": "2.7.1+win64",
     "gcode_start_byte": 87410,