diff --git a/site_ansto/Makefile b/site_ansto/Makefile
index 91967e95..1c4045f5 100644
--- a/site_ansto/Makefile
+++ b/site_ansto/Makefile
@@ -172,7 +172,7 @@ lyrebird: all
 pelican: all
 	make -C instrument/pelican
 kookaburra: all
-    make -C instrument/kookaburra
+	make -C instrument/kookaburra
 
 
 libansto.a: $(OBJ)