diff --git a/core/src/db_manager.cpp b/core/src/db_manager.cpp
index 0fd3a4d..193460c 100644
--- a/core/src/db_manager.cpp
+++ b/core/src/db_manager.cpp
@@ -203,7 +203,7 @@ bool DBManager::deleteUser(QString username)
     username_exists.addBindValue(username);
     username_exists.exec();
 
-    if (username_exists.first())
+    if (!username_exists.first())
         return false;
 
     QSqlQuery query;