Index: uspace/app/viewer/viewer.c
===================================================================
--- uspace/app/viewer/viewer.c	(revision 2f11647f1654b3be948f3019653adb72b197e29a)
+++ uspace/app/viewer/viewer.c	(revision aba2d04878ae87232f1a04b6539d16fd7d74a626)
@@ -517,6 +517,6 @@
 	if (viewer != NULL && viewer->imgs != NULL) {
 		for (u = 0; u < viewer->imgs_count; u++) {
-			if (viewer->imgs[i] != NULL)
-				free(viewer->imgs[i]);
+			if (viewer->imgs[u] != NULL)
+				free(viewer->imgs[u]);
 		}
 		free(viewer->imgs);