diff --git a/init/Kconfig b/init/Kconfig
index 4b7bac10c72d..03e1b863f5ce 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1933,6 +1933,7 @@ endchoice
 config SLAB_MERGE_DEFAULT
 	bool "Allow slab caches to be merged"
 	default y
+	depends on SLAB || SLUB
 	help
 	  For reduced kernel memory fragmentation, slab caches can be
 	  merged when they share the same size and other characteristics.