diff --git a/build.sh b/build.sh
index febc945..746737a 100755
--- a/build.sh
+++ b/build.sh
@@ -1,5 +1,13 @@
 #!/bin/bash
 
+if [[ $1 == "clean" ]]
+then
+    rm -rf build
+    rm -rf binaries
+    rm -rf extern/bullet/build
+    exit
+fi
+
 currentDir=$(pwd)
 threads=$(($(nproc)+1))