diff --git a/depends/install_imagequant.sh b/depends/install_imagequant.sh
index c306b8c100d..0fe8cbdba8e 100755
--- a/depends/install_imagequant.sh
+++ b/depends/install_imagequant.sh
@@ -27,6 +27,7 @@ else
     sudo cp usr/include/libimagequant.h /usr/include/
 
     # Copy to cache
+    rm -rf ~/cache-$archive_name
     mkdir ~/cache-$archive_name
     cp usr/lib/libimagequant.so* ~/cache-$archive_name/
     cp usr/include/libimagequant.h ~/cache-$archive_name/