diff --git a/conf/bitbake.conf b/conf/bitbake.conf
index 17a494d..9e67320 100644
--- a/conf/bitbake.conf
+++ b/conf/bitbake.conf
@@ -149,7 +149,7 @@ QEMU_OPTIONS_armv7a   = "-cpu cortex-a8"
 
 # default compression levels
 XZ_COMPRESSION_LEVEL ?= "-e -9"
-LZMA_COMPRESSION_LEVEL ?= "-e -9"
+LZMA_COMPRESSION_LEVEL ?= "-9"
 
 # default integrity check
 XZ_INTEGRITY_CHECK ?= "crc32"