diff --git a/tool/pull_subproject b/tool/pull_subproject
index 5a474b01..3d5f6803 100755
--- a/tool/pull_subproject
+++ b/tool/pull_subproject
@@ -11,5 +11,5 @@ set -ex
 shift
 
 for project in $*; do
-  git subtree add --prefix="./packages/$project" "https://github.com/angel-dart/$project.git" master
+  git subtree add --prefix="packages/$project" "https://github.com/angel-dart/$project.git" master
 done