diff --git a/grep.c b/grep.c
index 7063511..e2c190a 100644
--- a/grep.c
+++ b/grep.c
@@ -239,6 +239,8 @@
 static void show_line(struct grep_opt *opt, const char *bol, const char *eol,
 		      const char *name, unsigned lno, char sign)
 {
+	if (opt->null_following_name)
+		sign = '\0';
 	if (opt->pathname)
 		printf("%s%c", name, sign);
 	if (opt->linenum)
@@ -246,6 +248,11 @@
 	printf("%.*s\n", (int)(eol-bol), bol);
 }
 
+static void show_name(struct grep_opt *opt, const char *name)
+{
+	printf("%s%c", name, opt->null_following_name ? '\0' : '\n');
+}
+
 static int fixmatch(const char *pattern, char *line, regmatch_t *match)
 {
 	char *hit = strstr(line, pattern);
@@ -489,7 +496,7 @@
 				return 1;
 			}
 			if (opt->name_only) {
-				printf("%s\n", name);
+				show_name(opt, name);
 				return 1;
 			}
 			/* Hit at this line.  If we haven't shown the
@@ -555,7 +562,7 @@
 		return 0;
 	if (opt->unmatch_name_only) {
 		/* We did not see any hit, so we want to show this */
-		printf("%s\n", name);
+		show_name(opt, name);
 		return 1;
 	}
 
@@ -565,7 +572,8 @@
 	 * make it another option?  For now suppress them.
 	 */
 	if (opt->count && count)
-		printf("%s:%u\n", name, count);
+		printf("%s%c%u\n", name,
+		       opt->null_following_name ? '\0' : ':', count);
 	return !!last_hit;
 }