Index: libcfa/src/heap.cfa
===================================================================
--- libcfa/src/heap.cfa	(revision d6b03b72f3bd6ff7717f34502c41501e4a5fc620)
+++ libcfa/src/heap.cfa	(revision a92a4fea7f1dd5fff42ca819dc21cc080115a629)
@@ -10,6 +10,6 @@
 // Created On       : Tue Dec 19 21:58:35 2017
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Tue Jul 23 14:13:13 2019
-// Update Count     : 549
+// Last Modified On : Wed Jul 24 13:12:45 2019
+// Update Count     : 550
 //
 
@@ -248,6 +248,5 @@
 
 #ifdef FASTLOOKUP
-static_assert( 16 == sizeof(HeapManager.Storage), "size of HeapManager Storage wrong" ); // FIX ME
-enum { LookupSizes = 65_536 + 16 };						// number of fast lookup sizes
+enum { LookupSizes = 65_536 + sizeof(HeapManager.Storage) }; // number of fast lookup sizes
 static unsigned char lookup[LookupSizes];				// O(1) lookup for small sizes
 #endif // FASTLOOKUP