diff --git a/pillar.Rproj b/pillar.Rproj
index cba1b6b7a..b8605ddca 100644
--- a/pillar.Rproj
+++ b/pillar.Rproj
@@ -1,4 +1,5 @@
 Version: 1.0
+ProjectId: 0ca01909-b58e-45ba-b562-fe9519f405a5
 
 RestoreWorkspace: No
 SaveWorkspace: No