diff --git a/Makefile.am b/Makefile.am
index 7463efa976..139bb909e1 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -134,5 +134,5 @@ uninstall-hook:
 
 ca-bundle: lib/mk-ca-bundle.pl
 	@echo "generate a fresh ca-bundle.crt"
-	@mv lib/ca-bundle.crt lib/ca-bundle.crt.old
+	@-mv -vbVt lib/ca-bundle.crt lib/ca-bundle.crt.old
 	@perl $< -l -u lib/ca-bundle.crt
diff --git a/Makefile.dist b/Makefile.dist
index 4978984136..1bf67e44f3 100644
--- a/Makefile.dist
+++ b/Makefile.dist
@@ -263,7 +263,7 @@ vc8:
 
 ca-bundle: lib/mk-ca-bundle.pl
 	@echo "generate a fresh ca-bundle.crt"
-	@mv -v lib/ca-bundle.crt lib/ca-bundle.crt.old
+	@-mv -vbVt lib/ca-bundle.crt lib/ca-bundle.crt.old
 	@perl $< -l -u lib/ca-bundle.crt