diff --git a/src/common/FrameBufferSDL2.hxx b/src/common/FrameBufferSDL2.hxx
index 489ff4b4b..74969ed55 100644
--- a/src/common/FrameBufferSDL2.hxx
+++ b/src/common/FrameBufferSDL2.hxx
@@ -48,7 +48,7 @@ class FrameBufferSDL2 : public FrameBuffer
     //////////////////////////////////////////////////////////////////////
 
     /**
-      Updates window title/
+      Updates window title.
 
       @param title  The title of the application / window
     */