diff --git a/config/flipt.schema.cue b/config/flipt.schema.cue
index 9e6ddf2e48..313d63f8f5 100644
--- a/config/flipt.schema.cue
+++ b/config/flipt.schema.cue
@@ -1,5 +1,7 @@
 package flipt
 
+import "strings"
+
 #FliptSpec: {
 	// flipt-schema-v1
 	//
@@ -94,13 +96,20 @@ package flipt
 		conn_max_lifetime?: int
 	}
 
+	_#lower: ["debug", "error", "fatal", "info", "panic", "trace", "warn"]
+	_#all: _#lower + [ for x in _#lower {strings.ToUpper(x)}]
 	#log: {
 		file?:       string
 		encoding?:   "json" | "console" | *"console"
 		level?:      #log.#log_level
 		grpc_level?: #log.#log_level
+		keys?: {
+			time?:   string | *"T"
+			level?:  string | *"L"
+			message?: string | *"M"
+		}
 
-		#log_level: "debug" | "DEBUG" | "error" | "ERROR" | "fatal" | "FATAL" | "info" | "INFO" | "PANIC" | "panic" | "trace" | "TRACE" | "warn" | "WARN"
+		#log_level: or(_#all)
 	}
 
 	#meta: {
@@ -129,5 +138,4 @@ package flipt
 	}
 
 	#ui: enabled?: bool | *true
-	...
 }
diff --git a/config/flipt.schema.json b/config/flipt.schema.json
index 053d2c4cec..06694938f9 100644
--- a/config/flipt.schema.json
+++ b/config/flipt.schema.json
@@ -309,6 +309,10 @@
         "grpc_level": {
           "$ref": "#/definitions/log/$defs/log_level",
           "type": "string"
+        },
+        "keys": {
+          "$ref": "#/definitions/log/$defs/log_keys",
+          "type": "object"
         }
       },
       "required": [],
@@ -332,6 +336,25 @@
             "warn",
             "WARN"
           ]
+        },
+        "log_keys": {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "level": {
+              "type": "string",
+              "default": "L"
+            },
+            "time": {
+              "type": "string",
+              "default": "T"
+            },
+            "message": {
+              "type": "string",
+              "default": "M"
+            }
+          },
+          "required": []
         }
       }
     },