diff --git a/src/gui/DatabaseOpenWidget.cpp b/src/gui/DatabaseOpenWidget.cpp
index 97319252..37bbce74 100644
--- a/src/gui/DatabaseOpenWidget.cpp
+++ b/src/gui/DatabaseOpenWidget.cpp
@@ -117,8 +117,8 @@ void DatabaseOpenWidget::openDatabase()
         Q_EMIT editFinished(true);
     }
     else {
-        MessageBox::warning(this, tr("Error"), tr("Unable to open the database.\n%1")
-                            .arg(reader.errorString()));
+        MessageBox::warning(this, tr("Error"), tr("Unable to open the database.").append("\n")
+                            .append(reader.errorString()));
         m_ui->editPassword->clear();
     }
 }
@@ -138,7 +138,7 @@ CompositeKey DatabaseOpenWidget::databaseKey()
         QString keyFilename = m_ui->comboKeyFile->currentText();
         QString errorMsg;
         if (!key.load(keyFilename, &errorMsg)) {
-            MessageBox::warning(this, tr("Error"), tr("Can't open key file:\n%1").arg(errorMsg));
+            MessageBox::warning(this, tr("Error"), tr("Can't open key file").append(":\n").append(errorMsg));
             return CompositeKey();
         }
         masterKey.addKey(key);
diff --git a/src/gui/KeePass1OpenWidget.cpp b/src/gui/KeePass1OpenWidget.cpp
index 5f23d807..96ddf13f 100644
--- a/src/gui/KeePass1OpenWidget.cpp
+++ b/src/gui/KeePass1OpenWidget.cpp
@@ -64,8 +64,8 @@ void KeePass1OpenWidget::openDatabase()
         Q_EMIT editFinished(true);
     }
     else {
-        MessageBox::warning(this, tr("Error"), tr("Unable to open the database.\n%1")
-                            .arg(reader.errorString()));
+        MessageBox::warning(this, tr("Error"), tr("Unable to open the database.").append("\n")
+                            .append(reader.errorString()));
         m_ui->editPassword->clear();
     }
 }
diff --git a/src/gui/entry/EditEntryWidget.cpp b/src/gui/entry/EditEntryWidget.cpp
index 4a674332..4a866680 100644
--- a/src/gui/entry/EditEntryWidget.cpp
+++ b/src/gui/entry/EditEntryWidget.cpp
@@ -590,14 +590,14 @@ void EditEntryWidget::insertAttachment()
     QFile file(filename);
     if (!file.open(QIODevice::ReadOnly)) {
         MessageBox::warning(this, tr("Error"),
-                tr("Unable to open file:\n").append(file.errorString()));
+                tr("Unable to open file").append(":\n").append(file.errorString()));
         return;
     }
 
     QByteArray data;
     if (!Tools::readAllFromDevice(&file, data)) {
         MessageBox::warning(this, tr("Error"),
-                tr("Unable to open file:\n").append(file.errorString()));
+                tr("Unable to open file").append(":\n").append(file.errorString()));
         return;
     }