diff --git a/tools/server/server-models.cpp b/tools/server/server-models.cpp
index 544798c55e..ef6acb57de 100644
--- a/tools/server/server-models.cpp
+++ b/tools/server/server-models.cpp
@@ -96,6 +96,7 @@ static void unset_reserved_args(common_preset & preset, bool unset_model_args) {
     preset.unset_option("LLAMA_API_KEY");
     preset.unset_option("LLAMA_ARG_MODELS_DIR");
     preset.unset_option("LLAMA_ARG_MODELS_MAX");
+    preset.unset_option("LLAMA_ARG_MODELS_MEMORY_MARGIN");
     preset.unset_option("LLAMA_ARG_MODELS_PRESET");
     preset.unset_option("LLAMA_ARG_MODELS_AUTOLOAD");
     if (unset_model_args) {