diff --git a/stand/powerpc/ofw/ofwfdt.c b/stand/powerpc/ofw/ofwfdt.c
index fa0ff4165f4a..92ae9f553134 100644
--- a/stand/powerpc/ofw/ofwfdt.c
+++ b/stand/powerpc/ofw/ofwfdt.c
@@ -120,7 +120,7 @@ ofwfdt_fixups(void *fdtp)
 		/* Instantiate RTAS */
 		rtas = OF_open(path);
 		base = 0;
-		OF_call_method("instantiate-rtas", rtas, 1, 1, (cell_t)rtas,
+		OF_call_method("instantiate-rtas", rtas, 1, 1, (cell_t)rtasmem,
 		    &base);
 
 		/* Store info to FDT using Linux convention */