diff --git a/ggml.c b/ggml.c
index 31691ad75..264cfd705 100644
--- a/ggml.c
+++ b/ggml.c
@@ -3220,7 +3220,7 @@ const char * ggml_get_name(const struct ggml_tensor * tensor) {
 }
 
 struct ggml_tensor * ggml_set_name(struct ggml_tensor * tensor, const char * name) {
-    strncpy(tensor->name, name, sizeof(tensor->name));
+    strncpy(tensor->name, name, sizeof(tensor->name) - 1);
     tensor->name[sizeof(tensor->name) - 1] = '\0';
     return tensor;
 }