diff --git a/src/nnn.c b/src/nnn.c
index 0980e445..ee162e29 100644
--- a/src/nnn.c
+++ b/src/nnn.c
@@ -4236,7 +4236,7 @@ static blkcnt_t dirwalk(char *path, struct stat *psb)
 }
 
 /* Skip self and parent */
-static bool selforparent(char *path)
+static bool selforparent(const char *path)
 {
 	return path[0] == '.' && (path[1] == '\0' || (path[1] == '.' && path[2] == '\0'));
 }