diff --git a/src/mem/cache/compressors/Compressors.py b/src/mem/cache/compressors/Compressors.py
index 01cb619..9fa06f2 100644
--- a/src/mem/cache/compressors/Compressors.py
+++ b/src/mem/cache/compressors/Compressors.py
@@ -37,9 +37,9 @@
     block_size = Param.Int(Parent.cache_line_size, "Block size in bytes")
     chunk_size_bits = Param.Unsigned(32,
         "Size of a parsing data chunk (in bits)")
-    size_threshold = Param.Unsigned(Parent.cache_line_size, "Minimum size, "
-        "in bytes, in which a block must be compressed to. Otherwise it is "
-        "stored in its uncompressed state")
+    size_threshold_percentage = Param.Percent(50,
+        "Minimum percentage of the block size, a compressed block must "
+        "achieve to be stored in compressed format")
 
 class BaseDictionaryCompressor(BaseCacheCompressor):
     type = 'BaseDictionaryCompressor'
diff --git a/src/mem/cache/compressors/base.cc b/src/mem/cache/compressors/base.cc
index 5b96e97..e12e36e 100644
--- a/src/mem/cache/compressors/base.cc
+++ b/src/mem/cache/compressors/base.cc
@@ -77,7 +77,7 @@
 
 Base::Base(const Params *p)
   : SimObject(p), blkSize(p->block_size), chunkSizeBits(p->chunk_size_bits),
-    sizeThreshold(p->size_threshold),
+    sizeThreshold((blkSize * p->size_threshold_percentage) / 100),
     stats(*this)
 {
     fatal_if(64 % chunkSizeBits,