diff --git a/gpt4all-backend/llama.cpp.cmake b/gpt4all-backend/llama.cpp.cmake
index b540ee75..062d3552 100644
--- a/gpt4all-backend/llama.cpp.cmake
+++ b/gpt4all-backend/llama.cpp.cmake
@@ -377,6 +377,7 @@ if ((${CMAKE_SYSTEM_PROCESSOR} MATCHES "arm") OR (${CMAKE_SYSTEM_PROCESSOR} MATC
         # add_compile_definitions(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) # MSVC doesn't support vdupq_n_f16, vld1q_f16, vst1q_f16
         add_compile_definitions(__aarch64__) # MSVC defines _M_ARM64 instead
     else()
+        include(CheckCXXCompilerFlag)
         check_cxx_compiler_flag(-mfp16-format=ieee COMPILER_SUPPORTS_FP16_FORMAT_I3E)
         if (NOT "${COMPILER_SUPPORTS_FP16_FORMAT_I3E}" STREQUAL "")
             add_compile_options(-mfp16-format=ieee)
diff --git a/gpt4all-backend/llmodel.cpp b/gpt4all-backend/llmodel.cpp
index ca89800f..76dfd57a 100644
--- a/gpt4all-backend/llmodel.cpp
+++ b/gpt4all-backend/llmodel.cpp
@@ -131,7 +131,7 @@ LLModel *LLModel::Implementation::construct(const std::string &modelPath, std::s
     #if defined(__APPLE__) && defined(__arm64__) // FIXME: See if metal works for intel macs
         if (buildVariant == "auto") {
             size_t total_mem = getSystemTotalRAMInBytes();
-            impl = implementation(f, "metal");
+            impl = implementation(modelPath.c_str(), "metal");
             if(impl) {
                 LLModel* metalimpl = impl->m_construct();
                 metalimpl->m_implementation = impl;