diff --git a/arch/efi/efi/efi.c b/arch/efi/efi/efi.c
index ff97783..7de8ec8 100644
--- a/arch/efi/efi/efi.c
+++ b/arch/efi/efi/efi.c
@@ -104,7 +104,7 @@
 
 	free(name);
 
-	if (!buf) {
+	if (IS_ERR(buf)) {
 		free(boot);
 		return NULL;
 	}