diff --git a/textproc/scdoc/files/patch-clang15 b/textproc/scdoc/files/patch-clang15
new file mode 100644
index 000000000000..8dd4a4a5e6f8
--- /dev/null
+++ b/textproc/scdoc/files/patch-clang15
@@ -0,0 +1,24 @@
+https://lists.sr.ht/~sircmpwn/public-inbox/patches/37432
+
+--- include/str.h.orig	2021-11-13 08:04:45 UTC
++++ include/str.h
+@@ -7,7 +7,7 @@ struct str {
+ 	size_t len, size;
+ };
+ 
+-struct str *str_create();
++struct str *str_create(void);
+ void str_free(struct str *str);
+ void str_reset(struct str *str);
+ int str_append_ch(struct str *str, uint32_t ch);
+--- src/string.c.orig	2021-11-13 08:04:45 UTC
++++ src/string.c
+@@ -12,7 +12,7 @@ static void ensure_capacity(struct str *str, size_t le
+ 	}
+ }
+ 
+-struct str *str_create() {
++struct str *str_create(void) {
+ 	struct str *str = xcalloc(1, sizeof(struct str));
+ 	str->str = xcalloc(16, 1);
+ 	str->size = 16;