diff --git a/Makefile b/Makefile
index ade44ac4cc2f..f0cfcc7e0886 100644
--- a/Makefile
+++ b/Makefile
@@ -1053,7 +1053,7 @@ ifdef CONFIG_MODULE_COMPRESS
     mod_compress_cmd = $(KGZIP) -n -f
   endif # CONFIG_MODULE_COMPRESS_GZIP
   ifdef CONFIG_MODULE_COMPRESS_XZ
-    mod_compress_cmd = $(XZ) -f
+    mod_compress_cmd = $(XZ) --lzma2=dict=2MiB -f
   endif # CONFIG_MODULE_COMPRESS_XZ
 endif # CONFIG_MODULE_COMPRESS
 export mod_compress_cmd