diff --git a/src/cmd/mkfile b/src/cmd/mkfile
index 2112182..0657fcc 100644
--- a/src/cmd/mkfile
+++ b/src/cmd/mkfile
@@ -4,7 +4,7 @@
 
 <$PLAN9/src/mkmany
 
-BUGGERED='CVS|faces|factotum|lp|ip|mailfs|scat|upas|vncv|mnihongo|mpm|index|u9fs|secstore|smugfs'
+BUGGERED='CVS|faces|factotum|lp|ip|mailfs|upas|vncv|mnihongo|mpm|index|u9fs|secstore|smugfs'
 DIRS=lex `ls -l |sed -n 's/^d.* //p' |egrep -v "^($BUGGERED)$"|egrep -v '^lex$'`
 
 <$PLAN9/src/mkdirs
diff --git a/src/cmd/scat/display.c b/src/cmd/scat/display.c
index 739fca8..486d530 100644
--- a/src/cmd/scat/display.c
+++ b/src/cmd/scat/display.c
@@ -26,7 +26,7 @@
 		dup(p[0], 0);
 		close(p[0]);
 	/*	execl("/bin/page", "page", "-w", 0); */
-		execlp("img", "img", 0);
+		execlp("img", "img", nil);
 		fprint(2, "exec failed: %r\n");
 		exits("exec");
 
@@ -43,7 +43,7 @@
 				i = n;
 			if(write(p[1], a, i)!=i)
 				fprint(2, "write error: %r\n");
-		/*	if(i == 8192)	/* page aligned */ */
+		/*	if(i == 8192)	/* page aligned */
 		/*		segfree(a, i); */
 			n -= i;
 			a += i;
@@ -73,7 +73,7 @@
 		close(p[1]);
 		dup(p[0], 0);
 		close(p[0]);
-		execlp("img", "img", 0);
+		execlp("img", "img", nil);
 	/*	execl("/bin/page", "page", "-w", 0); */
 		fprint(2, "exec failed: %r\n");
 		exits("exec");