diff --git a/arch/mips/au1000/pb1100/init.c b/arch/mips/au1000/pb1100/init.c
index 1fae39a608cf..6131b56f41b5 100644
--- a/arch/mips/au1000/pb1100/init.c
+++ b/arch/mips/au1000/pb1100/init.c
@@ -53,7 +53,7 @@ void __init prom_init(void)
 
 	prom_argc = fw_arg0;
 	prom_argv = (char **) fw_arg1;
-	prom_envp = (int *) fw_arg3;
+	prom_envp = (char **) fw_arg3;
 
 	mips_machgroup = MACH_GROUP_ALCHEMY;
 	mips_machtype = MACH_PB1100;