diff --git a/include/sys/stat.h b/include/sys/stat.h
index 739ce4792..e67580b46 100644
--- a/include/sys/stat.h
+++ b/include/sys/stat.h
@@ -65,7 +65,7 @@ struct stat {
 #define S_ISBLK(m)	(((m) & S_IFMT) == S_IFBLK)	/* is a block spec */
 #define S_ISLNK(m)	(((m) & S_IFMT) == S_IFLNK)	/* is a symlink */
 #define S_ISFIFO(m)	(((m) & S_IFMT) == S_IFIFO)	/* is a pipe/FIFO */
-#define S_ISSOCK(m)     (((m) & S_IFMT) == S_ISOCK)	/* is a socket */
+#define S_ISSOCK(m)     (((m) & S_IFMT) == S_IFSOCK)	/* is a socket */
 
 #define DEFFILEMODE     (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)