diff --git a/ggml/src/ggml-backend.cpp b/ggml/src/ggml-backend.cpp
index 8f40fb2f7b..ffe20b9d05 100644
--- a/ggml/src/ggml-backend.cpp
+++ b/ggml/src/ggml-backend.cpp
@@ -2115,6 +2115,7 @@ ggml_backend_t ggml_backend_sched_get_tensor_backend(ggml_backend_sched_t sched,
 bool ggml_backend_op_alloc_size_may_expand(enum ggml_op op) {
     switch (op) {
         case GGML_OP_FLASH_ATTN_EXT:
+        case GGML_OP_MUL_MAT:
         case GGML_OP_MUL_MAT_ID:
         case GGML_OP_CUMSUM:
         case GGML_OP_ARGSORT: