diff --git a/ggml/src/ggml-virtgpu/backend/backend-dispatched-buffer-type.cpp b/ggml/src/ggml-virtgpu/backend/backend-dispatched-buffer-type.cpp
index 3a97fbd956..d55eec2761 100644
--- a/ggml/src/ggml-virtgpu/backend/backend-dispatched-buffer-type.cpp
+++ b/ggml/src/ggml-virtgpu/backend/backend-dispatched-buffer-type.cpp
@@ -36,7 +36,11 @@ uint32_t backend_buffer_type_get_max_size(apir_encoder * enc, apir_decoder * dec
     ggml_backend_buffer_type_t buft;
     buft = apir_decode_ggml_buffer_type(dec);
 
-    size_t value = buft->iface.get_max_size(buft);
+    size_t value = SIZE_MAX;
+    if (buft->iface.get_max_size) {
+        value = buft->iface.get_max_size(buft);
+    }
+
     apir_encode_size_t(enc, &value);
 
     return 0;