diff --git a/patch-bitcoin.sh b/patch-bitcoin.sh
index 2b6c2cdb..b380a08b 100755
--- a/patch-bitcoin.sh
+++ b/patch-bitcoin.sh
@@ -6,7 +6,7 @@ patch_file="$(pwd)/libbitcoind.patch"
 cd "$dir" || exit 1
 
 if test -e .git; then
-  git checkout -b libbitcoind || exit 1
+  git checkout -b "libbitcoind-$(date '+%Y.%m.%d')" || exit 1
 fi
 
 patch -p1 < "$patch_file" || exit 1