diff --git a/s/Wimp02 b/s/Wimp02
index 578d2f2dcb56fc181157eded57df8e317ff2cc15..633866310e5694a03faa77910ef2effad16b9a34 100644
--- a/s/Wimp02
+++ b/s/Wimp02
@@ -876,7 +876,7 @@ returntaskhandle
         BL      fulltaskhandle          ; R14 = handle including version bits
         STR     R14,[sp,#0*4]           ; overwrite value of R1 on stack
 ;
-        MOV     R0,#MemoryLimit         ; do this now cos R0 needed
+        MOV     R0,#ApplicationSpaceSize; do this now cos R0 needed
         MOV     R1,#0
         SWI     XOS_ChangeEnvironment
         SUB     R5,R1,#ApplicationStart ; data + 4