diff --git a/upstream_utils/update_mpack.py b/upstream_utils/update_mpack.py
index 68315e933a9..a70ee5d6fcb 100755
--- a/upstream_utils/update_mpack.py
+++ b/upstream_utils/update_mpack.py
@@ -17,13 +17,6 @@ def main():
     wpilib_root = get_repo_root()
     wpiutil = os.path.join(wpilib_root, "wpiutil")
 
-    # Delete old install
-    for d in [
-        "src/main/native/thirdparty/mpack/src",
-        "src/main/native/thirdparty/mpack/include",
-    ]:
-        shutil.rmtree(os.path.join(wpiutil, d), ignore_errors=True)
-
     # Apply patches to upstream Git repo
     os.chdir(upstream_root)
 
@@ -37,6 +30,13 @@ def main():
             os.path.join(wpilib_root, "upstream_utils/mpack_patches", f),
         )
 
+    # Delete old install
+    for d in [
+        "src/main/native/thirdparty/mpack/src",
+        "src/main/native/thirdparty/mpack/include",
+    ]:
+        shutil.rmtree(os.path.join(wpiutil, d), ignore_errors=True)
+
     # Run the amalgmation script
     subprocess.check_call(["bash", "tools/amalgamate.sh"])