diff --git a/harbour/contrib/libct/screen1.c b/harbour/contrib/libct/screen1.c
index e2cf42db4c..93cea40a1b 100644
--- a/harbour/contrib/libct/screen1.c
+++ b/harbour/contrib/libct/screen1.c
@@ -94,7 +94,7 @@
 HB_FUNC( SCREENATTR )
 {
 
-  USHORT uiSize;
+  UINT   uiSize;
   int    iRow, iCol;
   char * pcPos;