diff --git a/src/lib/synergy/Chunk.cpp b/src/lib/synergy/Chunk.cpp
index 0bd8a62c..71464f70 100644
--- a/src/lib/synergy/Chunk.cpp
+++ b/src/lib/synergy/Chunk.cpp
@@ -18,7 +18,7 @@
 #include "synergy/Chunk.h"
 #include "base/String.h"
 
-Chunk::Chunk(size_t size)
+Chunk::Chunk(size_t size): m_dataSize(0)
 {
     m_chunk = new char[size];
     memset(m_chunk, 0, size);