diff --git a/src/OpenGL/libGLESv2/Buffer.cpp b/src/OpenGL/libGLESv2/Buffer.cpp
index 42a1eea..0c164fa 100644
--- a/src/OpenGL/libGLESv2/Buffer.cpp
+++ b/src/OpenGL/libGLESv2/Buffer.cpp
@@ -64,7 +64,8 @@
 
 		if(data)
 		{
-			memcpy((void*)mContents->data(), data, size);
+			char *buffer = (char*)mContents->data();
+			memcpy(buffer + mOffset, data, size);
 		}
 	}
 }