1 files changed, 2 insertions, 2 deletions

diff --git a/miscutils/man.c b/miscutils/man.c
index 3f389b435..4ce40b247 100644
--- a/miscutils/man.c
+++ b/miscutils/man.c
@@ -66,7 +66,7 @@ static int run_pipe(const char *pager, char *man_filename, int man, int level)
                         goto ordinary_manpage;
 
                 line = xmalloc_open_zipped_read_close(man_filename, NULL);
-                if (!line || strncmp(line, ".so ", 4) != 0) {
+                if (!line || !is_prefixed_with(line, ".so ")) {
                         free(line);
                         goto ordinary_manpage;
                 }
@@ -232,7 +232,7 @@ int man_main(int argc UNUSED_PARAM, char **argv)
                 if (!token[1])
                         continue;
                 if (strcmp("DEFINE", token[0]) == 0) {
-                        if (strncmp("pager", token[1], 5) == 0) {
+                        if (is_prefixed_with("pager", token[1])) {
                                 pager = xstrdup(skip_whitespace(token[1]) + 5);
                         }
                 } else