diff --git a/interface/wx/gauge.h b/interface/wx/gauge.h
index 2636ac225b..68ccb2a068 100644
--- a/interface/wx/gauge.h
+++ b/interface/wx/gauge.h
@@ -52,13 +52,12 @@
            Display the current value in percents in the gauge itself. This
            style is only supported in wxQt and ignored under the other
            platforms.
-           @since 3.1.0
-
+           This flag is only available in wxWidgets 3.1.0 and later.
     @style{wxGA_PROGRESS}
            Reflect the value of gauge in the application taskbar button under
            Windows 7 and later and the dock icon under OS X, ignored under
            the other platforms.
-           @since 3.1.0
+           This flag is only available in wxWidgets 3.1.0 and later.
 
     @endStyleTable