diff --git a/06-variables/02-declarations/exercises/03-float64/solution/main.go b/06-variables/02-declarations/exercises/03-float64/solution/main.go
index 552698f..924de8b 100644
--- a/06-variables/02-declarations/exercises/03-float64/solution/main.go
+++ b/06-variables/02-declarations/exercises/03-float64/solution/main.go
@@ -12,7 +12,7 @@ import (
 )
 
 func main() {
-	var brightness int
+	var brightness float64
 
 	fmt.Println(brightness)
 }