diff --git a/libvncclient/vncviewer.c b/libvncclient/vncviewer.c
index 094ba34..6541c1d 100644
--- a/libvncclient/vncviewer.c
+++ b/libvncclient/vncviewer.c
@@ -221,13 +221,13 @@ static rfbBool rfbInitConnection(rfbClient* client)
   if (!InitialiseRFBConnection(client))
     return FALSE;
 
-  if (!SetFormatAndEncodings(client))
-    return FALSE;
-
   client->width=client->si.framebufferWidth;
   client->height=client->si.framebufferHeight;
   client->MallocFrameBuffer(client);
 
+  if (!SetFormatAndEncodings(client))
+    return FALSE;
+
   if (client->updateRect.x < 0) {
     client->updateRect.x = client->updateRect.y = 0;
     client->updateRect.w = client->width;