diff --git a/buildroot-external/genimage/images-os.cfg b/buildroot-external/genimage/images-os.cfg
index 7a1eaeb87..d3aa5fe57 100644
--- a/buildroot-external/genimage/images-os.cfg
+++ b/buildroot-external/genimage/images-os.cfg
@@ -4,6 +4,7 @@ image kernel.img {
 
 	squashfs {
 		compression = "lzo"
+		block-size = 131072
 	}
 }