diff --git a/install.sh b/install.sh
index ffb7aca..c5773ec 100644
--- a/install.sh
+++ b/install.sh
@@ -2,6 +2,8 @@
 set -e  
 
 # clear build dirs
+rm -rf build
+rm -rf *.egg-info
 rm -rf ktransformers/ktransformers_ext/build
 rm -rf ktransformers/ktransformers_ext/cuda/build
 rm -rf ktransformers/ktransformers_ext/cuda/dist