diff --git a/interface/wx/stream.h b/interface/wx/stream.h
index 1a2e0531bd..2524ef9120 100644
--- a/interface/wx/stream.h
+++ b/interface/wx/stream.h
@@ -795,6 +795,8 @@ public:
     /**
         Returns the first character in the input queue and removes it,
         blocking until it appears if necessary.
+
+        On success returns a value between 0 - 255; on end of file returns @c wxEOF.
     */
     int GetC();