diff --git a/mach/pdp/cg/mach.c b/mach/pdp/cg/mach.c
index faf167b67..24602f09d 100644
--- a/mach/pdp/cg/mach.c
+++ b/mach/pdp/cg/mach.c
@@ -30,7 +30,7 @@ con_part(sz,w) register sz; word w; {
 
 	while (part_size % sz)
 		part_size++;
-	if (part_size == EM_WSIZE)
+	if (part_size == TEM_WSIZE)
 		part_flush();
 	if (sz == 1) {
 		w &= 0xFF;