diff --git a/OTPService.GenerateCode.md b/OTPService.GenerateCode.md
index e3a4243..c231b39 100644
--- a/OTPService.GenerateCode.md
+++ b/OTPService.GenerateCode.md
@@ -33,7 +33,7 @@ If OTP algorithm is HOTP, `target` counter is increased by 1.
 ---
 
 ## GenerateCode(ref OTPConfiguration, DateTime)
-Generates a new OTP code with provided configuration.
+Generates a new TOTP code with provided configuration and for specific interval.
 ```csharp
 public static OTPCode GenerateCode(ref OTPConfiguration target, DateTime date);
 ```