diff --git a/support/src/FontWriter/Makefile b/support/src/FontWriter/Makefile
index 8a452fc0..9d394b62 100644
--- a/support/src/FontWriter/Makefile
+++ b/support/src/FontWriter/Makefile
@@ -21,7 +21,7 @@ LIB_OBJS = $(filter-out $(MAIN_BOOT_OBJ) $(OVERLAY_BOOT_OBJ),$(OBJS))
 #$(info $$var2 is [${LIB_OBJS}])
 
 $(DEFAULT_FONT_IMAGE): ressources/DefaultFont.png
-	jaby_engine_fconv --lz4 $< simple-tim clut4 | cpp_out --name default_font_data -o $@
+	jaby_engine_fconv --lz4 $< simple-tim clut4 --color-trans | cpp_out --name default_font_data -o $@
 
 #Linking rule
 $(TARGET).a: $(LIB_OBJS)
@@ -37,5 +37,6 @@ $(LIB_DIR)/$(ARTIFACT).a: $(TARGET).a
 all: $(DEFAULT_FONT_IMAGE) $(LIB_DIR)/$(ARTIFACT).a 
 
 clean:
+	rm -fr $(DEFAULT_FONT_IMAGE)
 	rm -fr $(OUTPUT_DIR)
 	rm -fr $(LIB_DIR)/$(ARTIFACT).a
\ No newline at end of file