diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4c50e2ae..1bfd14b9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -426,6 +426,8 @@ set(TARGET whisper)
 add_library(${TARGET}
     ggml.h
     ggml.c
+    ggml-alloc.h
+    ggml-alloc.c
     ${GGML_CUDA_SOURCES}
     ${GGML_OPENCL_SOURCES}
     whisper.h
diff --git a/Makefile b/Makefile
index 7aaade97..2df51116 100644
--- a/Makefile
+++ b/Makefile
@@ -184,6 +184,8 @@ endif
 
 ifndef WHISPER_NO_METAL
 	ifeq ($(UNAME_S),Darwin)
+		WHISPER_METAL := 1
+
 		CXXFLAGS += -DGGML_USE_METAL
 		LDFLAGS  += -framework Foundation -framework Metal -framework MetalKit
 	endif
@@ -315,7 +317,7 @@ whisper-encoder-impl.o: coreml/whisper-encoder-impl.m coreml/whisper-encoder-imp
 WHISPER_OBJ += whisper.o whisper-encoder.o whisper-encoder-impl.o
 endif
 
-ifndef WHISPER_NO_METAL
+ifdef WHISPER_METAL
 ggml-metal.o: ggml-metal.m ggml-metal.h
 	$(CC) $(CFLAGS) -c $< -o $@
 
diff --git a/examples/talk-llama/CMakeLists.txt b/examples/talk-llama/CMakeLists.txt
index cbdfb417..af5b5473 100644
--- a/examples/talk-llama/CMakeLists.txt
+++ b/examples/talk-llama/CMakeLists.txt
@@ -7,7 +7,7 @@ if (WHISPER_SDL2)
 
     # TODO: this is temporary
     #       need to export ggml symbols for MSVC, but too lazy ..
-    add_executable(${TARGET} talk-llama.cpp llama.cpp ../common.cpp ../common-sdl.cpp ../../ggml.c ../../whisper.cpp)
+    add_executable(${TARGET} talk-llama.cpp llama.cpp ../common.cpp ../common-sdl.cpp ../../ggml.c ../../ggml-alloc.c ../../whisper.cpp)
 
     target_include_directories(${TARGET} PRIVATE ${SDL2_INCLUDE_DIRS} ../../)
     target_link_libraries(${TARGET} PRIVATE ${SDL2_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})