diff --git a/board/esd/pci405/pci405.c b/board/esd/pci405/pci405.c
index b0d7663..dd97c7a 100644
--- a/board/esd/pci405/pci405.c
+++ b/board/esd/pci405/pci405.c
@@ -298,7 +298,7 @@
 int checkboard (void)
 {
 	char str[64];
-	int i = getenv_r ("serial#", str, sizeof(str));
+	int i = getenv_f("serial#", str, sizeof(str));
 
 	puts ("Board: ");