diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index f915fb6..e6623ca 100644
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -502,7 +502,7 @@
 
 	s = strchr(cmd, '.');
 	if (s != NULL &&
-	    (strcmp(s, ".jffs2") && !strcmp(s, ".e") && !strcmp(s, ".i"))) {
+	    (strcmp(s, ".jffs2") && strcmp(s, ".e") && strcmp(s, ".i"))) {
 		printf("Unknown nand load suffix '%s'\n", s);
 		show_boot_progress(-53);
 		return 1;