diff --git a/src/mem/cache/tags/base.hh b/src/mem/cache/tags/base.hh
index 2c528a9..9714d9a 100644
--- a/src/mem/cache/tags/base.hh
+++ b/src/mem/cache/tags/base.hh
@@ -91,7 +91,7 @@
     bool warmedUp;
 
     /** the number of blocks in the cache */
-    unsigned numBlocks;
+    const unsigned numBlocks;
 
     // Statistics
     /**
diff --git a/src/mem/cache/tags/fa_lru.cc b/src/mem/cache/tags/fa_lru.cc
index dfd4c40..1ee34b7 100644
--- a/src/mem/cache/tags/fa_lru.cc
+++ b/src/mem/cache/tags/fa_lru.cc
@@ -73,8 +73,6 @@
         cacheMask = 0;
     }
 
-    numBlocks = size/blkSize;
-
     blks = new FALRUBlk[numBlocks];
     head = &(blks[0]);
     tail = &(blks[numBlocks-1]);