diff --git a/chat.h b/chat.h
index bb5bec8..1dfe119 100644
--- a/chat.h
+++ b/chat.h
@@ -298,6 +298,3 @@ int getopt_config(
 
 // Defined in libcrypto if missing from libc:
 void explicit_bzero(void *b, size_t len);
-#ifndef strlcat
-size_t strlcat(char *restrict dst, const char *restrict src, size_t dstsize);
-#endif
diff --git a/handle.c b/handle.c
index 441bbc5..5f29db2 100644
--- a/handle.c
+++ b/handle.c
@@ -67,8 +67,7 @@ static const char *capList(enum Cap caps) {
 	buf[0] = '\0';
 	for (size_t i = 0; i < ARRAY_LEN(CapNames); ++i) {
 		if (caps & (1 << i)) {
-			if (buf[0]) strlcat(buf, " ", sizeof(buf));
-			strlcat(buf, CapNames[i], sizeof(buf));
+			catf(buf, sizeof(buf), "%s%s", (buf[0] ? " " : ""), CapNames[i]);
 		}
 	}
 	return buf;