diff --git a/internal/shim/manager/manager_unix.go b/internal/shim/manager/manager_unix.go
index a113027..878b53d 100644
--- a/internal/shim/manager/manager_unix.go
+++ b/internal/shim/manager/manager_unix.go
@@ -94,7 +94,7 @@ func newShimSocket(ctx context.Context, root, path, id string, debug bool) (*shi
 	// Workaround: shim.NewSocket expects the parent directory to exist.
 	// Ensure the socket directory exists before creating the socket.
 	// TODO: Remove after https://github.com/containerd/containerd/pull/12960
-	addrParentDir := filepath.Base(strings.TrimPrefix("unix://", address))
+	addrParentDir := filepath.Dir(strings.TrimPrefix(address, "unix://"))
 	if err := os.MkdirAll(addrParentDir, 0o700); err != nil {
 		return nil, fmt.Errorf("create socket directory: %w", err)
 	}