diff --git a/graphics/core.lua b/graphics/core.lua
index f6a647a..4bb0298 100644
--- a/graphics/core.lua
+++ b/graphics/core.lua
@@ -7,7 +7,7 @@ local flasher = require("graphics.flasher")
 
 local core = {}
 
-core.version = "2.3.0"
+core.version = "2.3.1"
 
 core.flasher = flasher
 core.events = events
diff --git a/graphics/elements/indicators/power.lua b/graphics/elements/indicators/power.lua
index adcd100..7a09f95 100644
--- a/graphics/elements/indicators/power.lua
+++ b/graphics/elements/indicators/power.lua
@@ -24,8 +24,9 @@ local element = require("graphics.element")
 ---@param args power_indicator_args
 ---@return graphics_element element, element_id id
 local function power(args)
-    element.assert(type(args.value) == "number", "value is a required field")
+    element.assert(type(args.label) == "string", "label is a required field")
     element.assert(type(args.unit) == "string", "unit is a required field")
+    element.assert(type(args.value) == "number", "value is a required field")
     element.assert(util.is_int(args.width), "width is a required field")
 
     args.height = 1