diff --git a/target/s390x/arch_dump.c b/target/s390x/arch_dump.c
index 50fa0ae4b6..cc1330876b 100644
--- a/target/s390x/arch_dump.c
+++ b/target/s390x/arch_dump.c
@@ -212,11 +212,13 @@ static int s390x_write_elf64_notes(const char *note_name,
     int note_size;
     int ret = -1;
 
+    assert(strlen(note_name) < sizeof(note.name));
+
     for (nf = funcs; nf->note_contents_func; nf++) {
         memset(&note, 0, sizeof(note));
         note.hdr.n_namesz = cpu_to_be32(strlen(note_name) + 1);
         note.hdr.n_descsz = cpu_to_be32(nf->contents_size);
-        strncpy(note.name, note_name, sizeof(note.name));
+        g_strlcpy(note.name, note_name, sizeof(note.name));
         (*nf->note_contents_func)(&note, cpu, id);
 
         note_size = sizeof(note) - sizeof(note.contents) + nf->contents_size;