diff --git a/README.md b/README.md
index e3ad3e4075..47de5bb1ff 100644
--- a/README.md
+++ b/README.md
@@ -2243,7 +2243,8 @@ fix-only = true
 
 #### [`fixable`](#fixable)
 
-A list of rule codes or prefixes to consider autofixable.
+A list of rule codes or prefixes to consider autofixable. By default, all rules are
+considered autofixable.
 
 **Default value**: `["A", "ANN", "ARG", "B", "BLE", "C", "COM", "D", "DTZ", "E", "EM", "ERA", "EXE", "F", "FBT", "G", "I", "ICN", "INP", "ISC", "N", "PD", "PGH", "PIE", "PL", "PT", "PTH", "Q", "RET", "RUF", "S", "SIM", "T", "TCH", "TID", "TRY", "UP", "W", "YTT"]`
 
diff --git a/ruff.schema.json b/ruff.schema.json
index 6d3c91bcb1..d5a5b412fb 100644
--- a/ruff.schema.json
+++ b/ruff.schema.json
@@ -111,7 +111,7 @@
       ]
     },
     "fixable": {
-      "description": "A list of rule codes or prefixes to consider autofixable.",
+      "description": "A list of rule codes or prefixes to consider autofixable. By default, all rules are considered autofixable.",
       "type": [
         "array",
         "null"