diff --git a/setup/post-arch.sh b/setup/post-arch.sh
index f6b18e64f..60d098032 100755
--- a/setup/post-arch.sh
+++ b/setup/post-arch.sh
@@ -23,7 +23,7 @@ pywalfox-install
 # Grimblast
 # --------------------------------------------------------------
 
-source $repo_path/setup/clean-install-grimblast.sh
+pacman -Qi grimblast-git &>/dev/null || source $repo_path/setup/clean-install-grimblast.sh
 
 # --------------------------------------------------------------
 # Cursors