diff --git a/src/nvimage/Image.cpp b/src/nvimage/Image.cpp
index 77f7bc8..6676a13 100644
--- a/src/nvimage/Image.cpp
+++ b/src/nvimage/Image.cpp
@@ -39,10 +39,9 @@ const Image & Image::operator=(const Image & img)
 
 void Image::allocate(uint w, uint h)
 {
-	free();
 	m_width = w;
 	m_height = h;
-	m_data = (Color32 *)nv::mem::malloc(w * h * sizeof(Color32));
+	m_data = (Color32 *)nv::mem::realloc(m_data, w * h * sizeof(Color32));
 }
 
 bool Image::load(const char * name)
@@ -80,7 +79,7 @@ void Image::unwrap()
 
 void Image::free()
 {
-	::free(m_data);
+	nv::mem::free(m_data);
 	m_data = NULL;
 }