diff --git a/DESCRIPTION b/DESCRIPTION
index 8c652a66..6bb2ab41 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -45,5 +45,6 @@ Collate:
     'utils-assert.R'
     'utils-grid.R'
     'utils.R'
+ByteCompile: true
 URL: https://github.com/Yunuuuu/ggheat
 BugReports: https://github.com/Yunuuuu/ggheat/issues