diff --git a/sopang.cpp b/sopang.cpp
index b5c0a1c..ee8e10e 100644
--- a/sopang.cpp
+++ b/sopang.cpp
@@ -9,6 +9,16 @@
 
 using namespace std;
 
+Sopang::Sopang()
+{
+    dBuffer = new uint64_t[dBufferSize];
+}
+
+Sopang::~Sopang()
+{
+    delete[] dBuffer;
+}
+
 const string *const *Sopang::parseTextArray(string text, unsigned *nSegments, unsigned **segmentSizes)
 {
     boost::trim(text);
diff --git a/sopang.hpp b/sopang.hpp
index fed4a89..0f34283 100644
--- a/sopang.hpp
+++ b/sopang.hpp
@@ -11,6 +11,9 @@ using namespace std;
 class Sopang
 {
 public:
+    Sopang();
+    ~Sopang();
+
     static const string *const *parseTextArray(string text, unsigned *nSegments, unsigned **segmentSizes);
     static vector<string> parsePatterns(string patternsStr);
 
@@ -26,7 +29,7 @@ class Sopang
 
     static constexpr uint64_t allOnes = ~(0x0ULL);
 
-    uint64_t dBuffer[dBufferSize];
+    uint64_t *dBuffer;
     uint64_t maskBuffer[maskBufferSize];
 };