diff --git a/headers/private/kernel/slab/Slab.h b/headers/private/kernel/slab/Slab.h
index 4f1f8ceea2..8b32426281 100644
--- a/headers/private/kernel/slab/Slab.h
+++ b/headers/private/kernel/slab/Slab.h
@@ -22,6 +22,7 @@ enum {
 	CACHE_DONT_SLEEP		= 1 << 8,
 
 	/* internal */
+	CACHE_ALIGN_ON_SIZE		= 1 << 30,
 	CACHE_DURING_BOOT		= 1 << 31
 };
 
diff --git a/src/system/kernel/slab/Slab.cpp b/src/system/kernel/slab/Slab.cpp
index f4b274a503..d081ff65bd 100644
--- a/src/system/kernel/slab/Slab.cpp
+++ b/src/system/kernel/slab/Slab.cpp
@@ -45,8 +45,6 @@
 #include <debug_paranoia.h>
 
 
-#define CACHE_ALIGN_ON_SIZE	(30 << 1)
-
 static const size_t kCacheColorPeriod = 8;
 
 struct object_link {