diff --git a/Changes b/Changes
index c16748deb..910316009 100644
--- a/Changes
+++ b/Changes
@@ -7,6 +7,8 @@ indicates the contributor was also the author of the fix; Thanks!
 
 ****  Internal Verilation-time performance enhancements, bug1021. [Johan Bjork]
 
+****  Fix stats file containing multiple unroll entries, bug1020. [Johan Bjork]
+
 
 * Verilator 3.880 2015-12-19
 
diff --git a/src/V3Unroll.cpp b/src/V3Unroll.cpp
index b4d0cb05b..410ec14b8 100644
--- a/src/V3Unroll.cpp
+++ b/src/V3Unroll.cpp
@@ -444,8 +444,8 @@ public:
 	nodep->accept(*this);
     }
     virtual ~UnrollVisitor() {
-	V3Stats::addStat("Optimizations, Unrolled Loops", m_statLoops);
-	V3Stats::addStat("Optimizations, Unrolled Iterations", m_statIters);
+	V3Stats::addStatSum("Optimizations, Unrolled Loops", m_statLoops);
+	V3Stats::addStatSum("Optimizations, Unrolled Iterations", m_statIters);
     }
 };