diff --git a/src/document/katedocument.cpp b/src/document/katedocument.cpp
--- a/src/document/katedocument.cpp
+++ b/src/document/katedocument.cpp
@@ -5053,6 +5053,7 @@
         QStringLiteral("indent-pasted-text"),
         QStringLiteral("tab-width"),
         QStringLiteral("indent-width"),
+        QStringLiteral("on-the-fly-spellcheck"),
     };
     return keys;
 }
@@ -5075,6 +5076,8 @@
         return m_config->tabWidth();
     } else if (key == QLatin1String("indent-width")) {
         return m_config->indentationWidth();
+    } else if (key == QLatin1String("on-the-fly-spellcheck")) {
+        return isOnTheFlySpellCheckingEnabled();
     }
 
     // return invalid variant
@@ -5113,6 +5116,8 @@
             m_config->setReplaceTabsDyn(bValue);
         } else if (key == QLatin1String("indent-pasted-text")) {
             m_config->setIndentPastedText(bValue);
+        } else if (key == QLatin1String("on-the-fly-spellcheck")) {
+            onTheFlySpellCheckingEnabled(bValue);
         }
     } else if (value.canConvert(QVariant::Int)) {
         if (key == QLatin1String("tab-width")) {
diff --git a/src/include/ktexteditor/configinterface.h b/src/include/ktexteditor/configinterface.h
--- a/src/include/ktexteditor/configinterface.h
+++ b/src/include/ktexteditor/configinterface.h
@@ -87,6 +87,7 @@
  *  - word-count [bool] enable/disable the counting of words and characters in the statusbar
  *  - scrollbar-minimap [bool] enable/disable scrollbar minimap
  *  - scrollbar-preview [bool] enable/disable scrollbar text preview on hover
+ *  - font [QFont] change the font
  *
  * KTextEditor::Document has support for the following:
  *  - backup-on-save-local [bool], enable/disable backup when saving local files
@@ -97,6 +98,7 @@
  *  - indent-pasted-text [bool], whether to indent pasted text
  *  - tab-width [int], read/set the width for tabs
  *  - indent-width [int], read/set the indentation width
+ *  - on-the-fly-spellcheck [bool], enable/disable on the fly spellcheck
  *
  * Either interface should emit the \p configChanged signal when appropriate.
  * TODO: Add to interface in KDE 5.
diff --git a/src/view/kateview.cpp b/src/view/kateview.cpp
--- a/src/view/kateview.cpp
+++ b/src/view/kateview.cpp
@@ -3028,7 +3028,8 @@
         QStringLiteral("keyword-completion"),
         QStringLiteral("word-count"),
         QStringLiteral("scrollbar-minimap"),
-        QStringLiteral("scrollbar-preview")
+        QStringLiteral("scrollbar-preview"),
+        QStringLiteral("font")
     };
     return keys;
 }
@@ -3075,6 +3076,8 @@
         return config()->scrollBarMiniMap();
     } else if (key == QLatin1String("scrollbar-preview")) {
         return config()->scrollBarPreview();
+    } else if (key == QLatin1String("font")) {
+        return renderer()->config()->font();
     }
 
     // return invalid variant
@@ -3133,6 +3136,11 @@
         if (key == QLatin1String("default-mark-type")) {
             config()->setDefaultMarkType(value.toUInt());
         }
+
+    } else if (value.canConvert(QVariant::Font)) {
+        if (key == QLatin1String("font")) {
+            renderer()->config()->setFont(value.value<QFont>());
+        }
     }
 }