diff --git a/dgl/NanoVG.hpp b/dgl/NanoVG.hpp
index 18ec1de0..0d50133e 100644
--- a/dgl/NanoVG.hpp
+++ b/dgl/NanoVG.hpp
@@ -801,11 +801,12 @@ public:
     float text(float x, float y, const char* string, const char* end);
 
    /**
-      Draws multi-line text string at specified location wrapped at the specified width. If end is specified only the sub-string up to the end is drawn.
+      Draws multi-line text string at specified location wrapped at the specified width.
+      If end is specified only the sub-string up to the end is drawn.
       White space is stripped at the beginning of the rows, the text is split at word boundaries or when new-line characters are encountered.
       Words longer than the max width are slit at nearest character (i.e. no hyphenation).
     */
-    void textBox(float x, float y, float breakRowWidth, const char* string, const char* end);
+    void textBox(float x, float y, float breakRowWidth, const char* string, const char* end = nullptr);
 
    /**
       Measures the specified text string. The bounds value are [xmin,ymin, xmax,ymax].
diff --git a/distrho/DistrhoUI.hpp b/distrho/DistrhoUI.hpp
index 18d07892..00540e81 100644
--- a/distrho/DistrhoUI.hpp
+++ b/distrho/DistrhoUI.hpp
@@ -107,14 +107,14 @@ protected:
     * DSP/Plugin Callbacks */
 
    /**
-      A parameter has changed on the plugin side.
+      A parameter has changed on the plugin side.@n
       This is called by the host to inform the UI about parameter changes.
     */
     virtual void parameterChanged(uint32_t index, float value) = 0;
 
 #if DISTRHO_PLUGIN_WANT_PROGRAMS
    /**
-      A program has been loaded on the plugin side.
+      A program has been loaded on the plugin side.@n
       This is called by the host to inform the UI about program changes.
     */
     virtual void programLoaded(uint32_t index) = 0;
@@ -122,7 +122,7 @@ protected:
 
 #if DISTRHO_PLUGIN_WANT_STATE
    /**
-      A state has changed on the plugin side.
+      A state has changed on the plugin side.@n
       This is called by the host to inform the UI about state changes.
     */
     virtual void stateChanged(const char* key, const char* value) = 0;