diff --git a/src/fetch/common.h b/src/fetch/common.h
index fdf1052..16f180d 100644
--- a/src/fetch/common.h
+++ b/src/fetch/common.h
@@ -19,6 +19,13 @@ pid_t getparentprocess(pid_t p) {
 	return (pid_t)v;
 }
 
+int isdescprocess(pid_t p, pid_t c) {
+	while (p != c && c != 0)
+		c = getparentprocess(c);
+
+	return (int)c;
+}
+
 char *get_autostart_path(char *autostart_path, unsigned int buf_size) {
 	const char *maomaoconfig = getenv("MAOMAOCONFIG");
 
diff --git a/src/maomao.c b/src/maomao.c
index 8324bc3..c686a01 100644
--- a/src/maomao.c
+++ b/src/maomao.c
@@ -907,13 +907,6 @@ void client_update_oldmonname_record(Client *c, Monitor *m) {
 	c->oldmonname[sizeof(c->oldmonname) - 1] = '\0';
 }
 
-int isdescprocess(pid_t p, pid_t c) {
-	while (p != c && c != 0)
-		c = getparentprocess(c);
-
-	return (int)c;
-}
-
 void swallow(Client *c, Client *w) {
 	c->bw = w->bw;
 	c->isfloating = w->isfloating;