diff --git a/components/compiler/extensions0.cpp b/components/compiler/extensions0.cpp
index f3c4bfed7..0c7b0e26b 100644
--- a/components/compiler/extensions0.cpp
+++ b/components/compiler/extensions0.cpp
@@ -537,7 +537,7 @@ namespace Compiler
             extensions.registerInstruction("setpos","cf",opcodeSetPos,opcodeSetPosExplicit);
             extensions.registerFunction("getpos",'f',"c",opcodeGetPos,opcodeGetPosExplicit);
             extensions.registerFunction("getstartingpos",'f',"c",opcodeGetStartingPos,opcodeGetStartingPosExplicit);
-            extensions.registerInstruction("position","ffffX",opcodePosition,opcodePositionExplicit);
+            extensions.registerInstruction("position","ffffz",opcodePosition,opcodePositionExplicit);
             extensions.registerInstruction("positioncell","ffffcX",opcodePositionCell,opcodePositionCellExplicit);
             extensions.registerInstruction("placeitemcell","ccffffX",opcodePlaceItemCell);
             extensions.registerInstruction("placeitem","cffffX",opcodePlaceItem);