diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -53,7 +53,7 @@
 
 add_definitions("-DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_TO_ASCII")
 add_definitions(-DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT)
-add_definitions(-DQT_DISABLE_DEPRECATED_BEFORE=0x060000)
+add_definitions(-DQT_DISABLE_DEPRECATED_BEFORE=0x050a00)
 add_definitions(-DQT_NO_URL_CAST_FROM_STRING)
 
 if(BUILD_TESTING)
diff --git a/src/contact-editor/editor/generalinfoeditor/displaynameeditwidget.cpp b/src/contact-editor/editor/generalinfoeditor/displaynameeditwidget.cpp
--- a/src/contact-editor/editor/generalinfoeditor/displaynameeditwidget.cpp
+++ b/src/contact-editor/editor/generalinfoeditor/displaynameeditwidget.cpp
@@ -68,10 +68,10 @@
         font.setStyle(QFont::StyleItalic);
         QFontMetrics metrics(font);
         for (const QString &description : qAsConst(mDescriptions)) {
-            mMaxDescriptionWidth = qMax(mMaxDescriptionWidth, metrics.width(description));
+            mMaxDescriptionWidth = qMax(mMaxDescriptionWidth, metrics.boundingRect(description).width());
         }
 
-        mMaxDescriptionWidth += 3;
+        mMaxDescriptionWidth += 2;
     }
 
     int maximumDescriptionWidth() const
@@ -211,7 +211,7 @@
             QFontMetrics metrics(mView->font());
             const int viewCount(mView->count());
             for (int i = 0; i < viewCount; ++i) {
-                maxWidth = qMax(maxWidth, metrics.width(mView->itemText(i)));
+                maxWidth = qMax(maxWidth, metrics.boundingRect(mView->itemText(i)).width());
             }
 
             // resize it to show the complete content