diff --git a/drivers/Makefile b/drivers/Makefile
index c8dc9ce..03a30d3 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -1,7 +1,7 @@
 SUBDIRS := $(wildcard */.)
 BUILD_DIR=../build/
 
-all: $(BUILD_DIR)/drivers/ $(SUBDIRS)
+all: $(BUILD_DIR)/drivers/ $(BUILD_DIR)/drivers/assets/ $(SUBDIRS)
 
 $(SUBDIRS):
 		$(MAKE) -C $@
@@ -10,3 +10,5 @@ $(SUBDIRS):
 
 $(BUILD_DIR)/drivers/:
 	mkdir -p $(BUILD_DIR)/drivers/
+$(BUILD_DIR)/drivers/assets/:
+	mkdir -p $(BUILD_DIR)/drivers/assets/
diff --git a/drivers/g-wolves/htx/Makefile b/drivers/g-wolves/htx/Makefile
index d9f97a2..d879f80 100644
--- a/drivers/g-wolves/htx/Makefile
+++ b/drivers/g-wolves/htx/Makefile
@@ -7,4 +7,6 @@ BUILD_DIR=../../../build/
 all: $(BUILD_DIR)/drivers/gwolves-htx.so
 
 $(BUILD_DIR)/drivers/gwolves-htx.so: htx.c | $(BUILD_DIR)/drivers/
-	gcc $(CFLAGS) -o $@ $^
+	$(CC) $(CFLAGS) -o $@ $^
+$(BUILD_DIR)/drivers/assets/gwolves-htx.png: htx_0.png | $(BUILD_DIR)/drivers/assets
+	cp $^ $@
diff --git a/drivers/g-wolves/htx/htx.c b/drivers/g-wolves/htx/htx.c
index 7542846..c69b1bd 100644
--- a/drivers/g-wolves/htx/htx.c
+++ b/drivers/g-wolves/htx/htx.c
@@ -13,7 +13,7 @@ static int htx_send_command(libusb_device_handle* hand, uint8_t command, uint8_t
     0x300, // wValue (FEATURE << 8 | REPORT(0))
     0x2, // wIndex = 0x2 : interface
     report,
-    64, // wLength = 64
+    REPORT_MAX_SIZE, // wLength = 64
     0 /* timeout*/);
 
     if(res <= 0) return res;
@@ -25,7 +25,7 @@ static int htx_send_command(libusb_device_handle* hand, uint8_t command, uint8_t
     0x300, // wValue (FEATURE << 8 | REPORT(0))
     0x2, // wIndex = 0x2 : interface
     report,
-    64, // wLength = 64
+    REPORT_MAX_SIZE, // wLength = 64
     0);
 
     return res;
@@ -65,5 +65,5 @@ char* driver_get_name(void* handle)
 
 char* driver_get_image(void* handle)
 {
-    return "drivers/g-wolves/htx/htx_0.png";
+    return "drivers/assets/gwolves-htx.png";
 }