diff --git a/plugins/GSdx/GPURenderer.h b/plugins/GSdx/GPURenderer.h
index 4a9884d736..01ea219acc 100644
--- a/plugins/GSdx/GPURenderer.h
+++ b/plugins/GSdx/GPURenderer.h
@@ -114,11 +114,17 @@ protected:
 
 	void GrowVertexBuffer()
 	{
-	    if(m_vertices != NULL) _aligned_free(m_vertices);
+		int maxcount = std::max<int>(m_maxcount * 3 / 2, 10000);
+		Vertex* vertices = (Vertex*)_aligned_malloc(sizeof(Vertex) * maxcount, 16);
 
-		m_maxcount = max(10000, m_maxcount * 3/2);
-		m_vertices = (Vertex*)_aligned_malloc(sizeof(Vertex) * m_maxcount, 16);
-		m_maxcount -= 100;
+	    if(m_vertices != NULL)
+		{
+			memcpy(vertices, m_vertices, sizeof(Vertex) * m_maxcount);
+			_aligned_free(m_vertices);
+		}
+
+		m_vertices = vertices;
+		m_maxcount = maxcount - 100;
 	}
 
 	__forceinline Vertex* DrawingKick(int& count)
diff --git a/plugins/GSdx/GPUState.cpp b/plugins/GSdx/GPUState.cpp
index f023c5020c..9d519929a5 100644
--- a/plugins/GSdx/GPUState.cpp
+++ b/plugins/GSdx/GPUState.cpp
@@ -706,11 +706,17 @@ void GPUState::Buffer::Reserve(int size)
 {
 	if(size > maxbytes)
 	{
-		maxbytes = (maxbytes + size + 1023) & ~1023;
+		int new_maxbytes = (maxbytes + size + 1023) & ~1023;
+		uint8* new_buff = (uint8*)_aligned_malloc(new_maxbytes, 16);
 
-        if(buff != NULL) _aligned_free(buff);
+	    if(buff != NULL)
+		{
+			memcpy(new_buff, buff, maxbytes);
+			_aligned_free(buff);
+		}
 
-		buff = (uint8*)_aligned_malloc(maxbytes, 16);
+		maxbytes = new_maxbytes;
+		buff = new_buff;
 	}
 }
 
diff --git a/plugins/GSdx/GSRenderer.h b/plugins/GSdx/GSRenderer.h
index 975938868b..6e8001780a 100644
--- a/plugins/GSdx/GSRenderer.h
+++ b/plugins/GSdx/GSRenderer.h
@@ -137,11 +137,17 @@ protected:
 
 	void GrowVertexBuffer()
 	{
-		if(m_vertices != NULL) _aligned_free(m_vertices);
+		int maxcount = std::max<int>(m_maxcount * 3 / 2, 10000);
+		Vertex* vertices = (Vertex*)_aligned_malloc(sizeof(Vertex) * maxcount, 16);
 
-		m_maxcount = std::max<int>(10000, m_maxcount * 3 / 2);
-		m_vertices = (Vertex*)_aligned_malloc(sizeof(Vertex) * m_maxcount, 32);
-		m_maxcount -= 100;
+	    if(m_vertices != NULL)
+		{
+			memcpy(vertices, m_vertices, sizeof(Vertex) * m_maxcount);
+			_aligned_free(m_vertices);
+		}
+
+		m_vertices = vertices;
+		m_maxcount = maxcount - 100;
 	}
 
 	// Returns a pointer to the drawing vertex. Can return NULL!