diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c
index 625921e27dfb..592b9bdb4e4a 100644
--- a/rust/helpers/helpers.c
+++ b/rust/helpers/helpers.c
@@ -88,6 +88,7 @@
 #include "signal.c"
 #include "slab.c"
 #include "spinlock.c"
+#include "string.c"
 #include "sync.c"
 #include "task.c"
 #include "time.c"
diff --git a/rust/helpers/string.c b/rust/helpers/string.c
new file mode 100644
index 000000000000..8ef30eb07a15
--- /dev/null
+++ b/rust/helpers/string.c
@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/string.h>
+
+__rust_helper void *rust_helper_memchr(const void *s, int c, size_t n)
+{
+	return memchr(s, c, n);
+}