diff --git a/exercises/practice/raindrops/.approaches/introduction.md b/exercises/practice/raindrops/.approaches/introduction.md
index 7bbf84c064..155e02c5bd 100644
--- a/exercises/practice/raindrops/.approaches/introduction.md
+++ b/exercises/practice/raindrops/.approaches/introduction.md
@@ -12,7 +12,7 @@ For determining that, you will use the the [remainder operator][remainder-operat
 ## Approach: `if` statements
 
 ```csharp
-public string Convert()
+public static string Convert(int number)
 {
     var drops = "";
     if (number % 3 == 0)