diff --git a/src/server/authserver/Authentication/TOTP.h b/src/server/authserver/Authentication/TOTP.h
index 04b4a8c211..7ced260758 100644
--- a/src/server/authserver/Authentication/TOTP.h
+++ b/src/server/authserver/Authentication/TOTP.h
@@ -16,7 +16,7 @@
  */
 
 #ifndef _TOTP_H
-#define _TOPT_H
+#define _TOTP_H
 
 #include "openssl/hmac.h"
 #include "openssl/evp.h"