diff --git a/glx/glxscreens.c b/glx/glxscreens.c
index ebb9747b4..928cf0c92 100644
--- a/glx/glxscreens.c
+++ b/glx/glxscreens.c
@@ -419,6 +419,15 @@ void __glXScreenInit(__GLXscreen *pGlxScreen, ScreenPtr pScreen)
 
 void __glXScreenDestroy(__GLXscreen *screen)
 {
+    __GLXconfig *head, *next;
+
+    head = screen->fbconfigs;
+    while (head) {
+	next = head->next;
+	free(head);
+	head = next;
+    }
+
     free(screen->GLXvendor);
     free(screen->GLXextensions);
     free(screen->GLextensions);