diff --git a/cad/test1/Makefile b/cad/test1/Makefile
index 86a9f40..38e3efc 100644
--- a/cad/test1/Makefile
+++ b/cad/test1/Makefile
@@ -9,7 +9,7 @@ scad.stl:	button.scad
 
 cadmium.stl:	button.py
 		time ./$<
-		mv botton.stl $@
+		mv button.stl $@
 
 clean:
 		rm -f $(OUT)