diff --git a/Makefile b/Makefile
index 5a1dc07..be76504 100644
--- a/Makefile
+++ b/Makefile
@@ -34,7 +34,7 @@ CFLAGS			:=	-g -std=c11 -Os \
 					-fomit-frame-pointer -fdata-sections -ffunction-sections \
 					$(ARCH) -nostartfiles
 
-CFLAGS			+=	$(INCLUDE) -D_GNU_SOURCE -DCAN_HAZ_IRQ -fno-builtin-printf -Wno-nonnull -Werror=implicit
+CFLAGS			+=	$(INCLUDE) -D_GNU_SOURCE -fno-builtin-printf -Wno-nonnull -Werror=implicit
 
 CXXFLAGS		:=	$(CFLAGS) -fno-rtti -fno-exceptions
 
diff --git a/Makefile.mlckey b/Makefile.mlckey
new file mode 100644
index 0000000..9a87d9a
--- /dev/null
+++ b/Makefile.mlckey
@@ -0,0 +1,135 @@
+#---------------------------------------------------------------------------------
+.SUFFIXES:
+#---------------------------------------------------------------------------------
+
+export TOPDIR ?= $(CURDIR)
+export MAKEFILE_ROOT_DIR:=$(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
+include $(MAKEFILE_ROOT_DIR)/elf_rules
+
+#---------------------------------------------------------------------------------
+# TARGET is the name of the output
+# BUILD is the directory where object files & intermediate files will be placed
+# SOURCES is a list of directories containing source code
+# DATA is a list of directories containing data files
+# INCLUDES is a list of directories containing header files
+# SPECS is the directory containing the important build and link files
+#---------------------------------------------------------------------------------
+export TARGET		:=	wafel_sd_usb_mlckey
+export BUILD		?=	debug
+
+R_SOURCES			:=	
+SOURCES				:=	source source/ios source/services source/wupserver source/latte
+
+R_INCLUDES			:=	
+INCLUDES 			:=	source
+
+DATA				:=	
+
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+ARCH			:=	-march=armv5te -mcpu=arm926ej-s -mthumb-interwork -mbig-endian -mfloat-abi=soft -fPIE -fno-jump-tables -export-dynamic -s -isystem $(STROOPWAFEL_ROOT)/wafel_core/include
+
+CFLAGS			:=	-g -std=c11 -Os \
+					-fomit-frame-pointer -fdata-sections -ffunction-sections \
+					$(ARCH) -nostartfiles
+
+CFLAGS			+=	$(INCLUDE) -D_GNU_SOURCE -fno-builtin-printf -Wno-nonnull -Werror=implicit -DUSE_MLC_KEY
+
+CXXFLAGS		:=	$(CFLAGS) -fno-rtti -fno-exceptions
+
+ASFLAGS			:=	-g $(ARCH)
+LDFLAGS			 =	-g --specs=$(MAKEFILE_ROOT_DIR)/ccd00.specs $(ARCH) -Wl,--gc-sections,-Map,$(TARGET).map \
+					-L$(DEVKITARM)/lib/gcc/arm-none-eabi/$(GCC_VERSION)/be -L$(DEVKITARM)/arm-none-eabi/lib/be \
+					-z max-page-size=4096 -nostartfiles
+
+LIBS			:=	-lnosys
+
+#---------------------------------------------------------------------------------
+# list of directories containing libraries, this must be the top level containing
+# include and lib
+#---------------------------------------------------------------------------------
+LIBDIRS			:=	
+
+#---------------------------------------------------------------------------------
+# no real need to edit anything past this point unless you need to add additional
+# rules for different file extensions
+#---------------------------------------------------------------------------------
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+#---------------------------------------------------------------------------------
+
+export ROOTDIR	:=	$(CURDIR)
+export OUTPUT	:=	$(CURDIR)/$(TARGET)
+
+SOURCES         := $(SOURCES) $(foreach dir,$(R_SOURCES), $(dir) $(filter %/, $(wildcard $(dir)/*/)))
+INCLUDES        := $(INCLUDES) $(foreach dir,$(R_INCLUDES), $(dir) $(filter %/, $(wildcard $(dir)/*/)))
+
+export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
+					$(foreach dir,$(DATA),$(CURDIR)/$(dir))
+
+export DEPSDIR	:=	$(CURDIR)/$(BUILD)
+
+CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
+CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
+SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.S)))
+BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
+
+#---------------------------------------------------------------------------------
+# use CXX for linking C++ projects, CC for standard C
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(CPPFILES)),)
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CC)
+#---------------------------------------------------------------------------------
+else
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CXX)
+#---------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------
+
+export OFILES	:=	$(addsuffix .o,$(BINFILES)) \
+					$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.S=.o)
+
+export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
+					$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
+					-I$(CURDIR)/$(BUILD)
+
+export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)
+
+.PHONY: $(BUILD) clean all
+
+#---------------------------------------------------------------------------------
+all: $(BUILD)
+
+$(BUILD):
+	@[ -d $@ ] || mkdir -p $@
+	@make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
+	@mv $(OUTPUT).elf $(OUTPUT).ipx
+
+#---------------------------------------------------------------------------------
+clean:
+	@echo clean ...
+	@rm -fr $(BUILD) $(OUTPUT).elf $(OUTPUT)-strip.elf $(OUTPUT).ipx
+
+
+#---------------------------------------------------------------------------------
+else
+
+DEPENDS		:=	$(OFILES:.o=.d)
+
+#---------------------------------------------------------------------------------
+# main targets
+#---------------------------------------------------------------------------------
+#$(OUTPUT)-strip.elf: $(OUTPUT).elf
+#	$(STRIP) $< -o $@
+
+$(OUTPUT).elf: $(OFILES)
+
+
+-include $(DEPENDS)
+
+
+#---------------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------------
diff --git a/source/main.c b/source/main.c
index 484dfd5..053b9b8 100644
--- a/source/main.c
+++ b/source/main.c
@@ -18,6 +18,10 @@ const char* MODULE_NAME = "SDUSB";
 #define SECTOR_SIZE 512
 #define LOCAL_HEAP_ID 0xCAFE
 #define DEVTYPE_USB 17
+// hope that 0x11 stays constant for mlc
+#define MLC_CRYPTO_HANDLE 0x11
+// tells crypto to not do crypto (depends on stroopwafel patch)
+#define NO_CRYPTO_HANDLE 0xDEADBEEF
 
 #define SERVER_HANDLE_LEN 0xb5
 #define SERVER_HANDLE_SZ (SERVER_HANDLE_LEN * sizeof(int))
@@ -179,11 +183,13 @@ void hook_register_sd(trampoline_state *state){
 
 
 void crypto_hook(trampoline_state* state){
-    // hope that 0x11 stays constant for mlc
-    if(active && state->r[5] == sdusb_size && state->r[0] != 0x11){
+    if(active && state->r[5] == sdusb_size && state->r[0] != MLC_CRYPTO_HANDLE){
         //debug_printf("SDUSB: cryptohook detected USB partition true lr: %p\n", state->lr);
-        // tells crypto to not do crypto (depends on stroopwafel patch)
-        state->r[0] = 0xDEADBEEF;
+#ifdef USE_MLC_KEY
+        tate->r[0] = MLC_CRYPTO_HANDLE;
+#else     
+        state->r[0] = NO_CRYPTO_HANDLE;
+#endif
     }
     //debug_printf("crypto_hook: r0: %p, r1: %p, r2: %p, r3: %p, r4: %p, r5: %p, r6: %p, r7: %p, r8: %p, r9: %p, r10: %p, r11: %p, r12: %p, lr: %p\n",
     //        state->r[0],state->r[1],state->r[2],state->r[3],state->r[4],state->r[5],state->r[6],state->r[7],state->r[8],state->r[9],state->r[10],state->r[11], state->r[12], state->lr);