diff --git a/workflows/autobuild_esp32.sh b/workflows/autobuild_esp32.sh
index 1055d9e..7bcea55 100755
--- a/workflows/autobuild_esp32.sh
+++ b/workflows/autobuild_esp32.sh
@@ -8,4 +8,5 @@ cd esp-idf
 ./install.sh esp32s3
 . ./export.sh
 cd ..
+rm -rf build
 idf.py all