diff --git a/src/mem/cache/compressors/base.cc b/src/mem/cache/compressors/base.cc
index df3020dbf8..6ab2831fc9 100644
--- a/src/mem/cache/compressors/base.cc
+++ b/src/mem/cache/compressors/base.cc
@@ -78,7 +78,7 @@ Base::CompressionData::getSizeBits() const
 std::size_t
 Base::CompressionData::getSize() const
 {
-    return std::ceil(_size/8);
+    return std::ceil(_size/(float)CHAR_BIT);
 }
 
 Base::Base(const Params &p)