diff --git a/lib/libc/aarch64/string/Makefile.inc b/lib/libc/aarch64/string/Makefile.inc
--- a/lib/libc/aarch64/string/Makefile.inc
+++ b/lib/libc/aarch64/string/Makefile.inc
@@ -20,6 +20,8 @@
 	strnlen \
 	strrchr
 
+MDSRCS+=	strcat.c
+
 #
 # Add the above functions. Generate an asm file that includes the needed
 # Arm Optimized Routines file defining the function name to the libc name.
diff --git a/lib/libc/aarch64/string/strcat.c b/lib/libc/aarch64/string/strcat.c
new file mode 100644
--- /dev/null
+++ b/lib/libc/aarch64/string/strcat.c
@@ -0,0 +1,20 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2024 Getz Mikalsen <getz@FreeBSD.org>
+*/
+
+#include <string.h>
+
+#undef strcat	/* _FORTIFY_SOURCE */
+
+char *
+strcat(char * __restrict s, const char * __restrict append)
+{
+	char *save = s;
+
+	/* call into SIMD optimized functions */
+	stpcpy(s + strlen(s), append);
+
+	return(save);
+}