diff --git a/src/Library/Makefile b/src/Library/Makefile
index 18a8115c..ba511a31 100644
--- a/src/Library/Makefile
+++ b/src/Library/Makefile
@@ -43,10 +43,10 @@ $(LIB_DIR)/$(notdir $(OVERLAY_BOOT_OBJ)): $(OVERLAY_BOOT_OBJ)
 
 # Improve later
 $(SPLASH_IMAGE): ressources/Splash.png
-	jaby_engine_fconv $< simple-tim full16 | cpp_out --name SplashScreen -o $@	
+	jaby_engine_fconv --lz4 $< simple-tim full16 | cpp_out --name SplashScreen -o $@	
 
 $(SPLASH_IMAGE_NTSC): ressources/Splash_ntsc.png
-	jaby_engine_fconv $< simple-tim full16 | cpp_out --name SplashScreen -o $@	
+	jaby_engine_fconv --lz4 $< simple-tim full16 | cpp_out --name SplashScreen -o $@	
 
 #Rules section for default compilation and linking
 all: $(SPLASH_IMAGE) $(SPLASH_IMAGE_NTSC) $(LIB_DIR)/$(ARTIFACT).a $(LIB_DIR)/$(notdir $(MAIN_BOOT_OBJ)) $(LIB_DIR)/$(notdir $(OVERLAY_BOOT_OBJ))