diff --git a/proto/accounts/v1/accounts_v1.proto b/proto/accounts/v1/accounts_v1.proto
index 1d38bdb..3b74389 100644
--- a/proto/accounts/v1/accounts_v1.proto
+++ b/proto/accounts/v1/accounts_v1.proto
@@ -12,7 +12,8 @@ service AccountsNoAuthService {
   rpc SignIn (SignInRequest) returns (google.protobuf.Empty) {}
   // Create a new account
   rpc SignUp (SignUpRequest) returns (google.protobuf.Empty) {}
-  // RefreshToken doesn't use regular auth methods
+  // RefreshToken doesn't use regular auth methods, it recieves the token in data,
+  // checks whether a session with this token exists and create a new one if yes
   rpc RefreshToken (RefreshTokenRequest) returns (google.protobuf.Empty) {}
 }