diff --git a/Makefile b/Makefile
index 33effdec1a9afd3b75e55f4f1e5652995521ee66..d8b39aea91810f9ce6d822c5a5f55a3dd02082aa 100644
--- a/Makefile
+++ b/Makefile
@@ -133,7 +133,12 @@ stamp/17: stamp/16 clone fixes/17-v0-45-1-maint
 	cd 17.git && ../fixes/17-v0-45-1-maint
 	touch $@
 
-stamp/99: stamp/17 clone
+stamp/98: stamp/17 clone
+	./clone $< $@
+	cd 98.git && git branch -d origin
+	touch $@
+
+stamp/99: stamp/98 clone
 	./clone $< $@
 	touch $@