diff --git a/src/Makefile b/src/Makefile
index 1c9a526..bb12d8d 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,9 +1,10 @@
+.PHONY: prepare distclean pretty
+
 ESP_SDK_PATH=/opt/esp-open-sdk/
 ESP_RTOS_PATH=/opt/esp-open-rtos/
 export PATH := $(ESP_SDK_PATH)xtensa-lx106-elf/bin:$(PATH)
 
 PROGRAM=wifidmm
-PROGRAM_EXTRA_SRC_FILES=httpd.c
 EXTRA_COMPONENTS=extras/dhcpserver extras/stdin_uart_interrupt extras/mbedtls extras/httpd
 EXTRA_CFLAGS=-DLWIP_HTTPD_CGI=1 -DLWIP_HTTPD_SSI=1 -I./fsdata
 EXTRA_CFLAGS+=-DLWIP_DEBUG=1 -DHTTPD_DEBUG=LWIP_DBG_ON
@@ -11,12 +12,15 @@ FLASH_SIZE=32
 
 include $(ESP_RTOS_PATH)common.mk
 
-html:
-	@echo "Generating fsdata.."
-	cd fsdata && ./makefsdata
+fsdata/fsdata.c:
+	@cd fsdata && ./makefsdata
 
-distclean:
-	$(RM) fsdata/fsdata.c
+build/httpd/fs.o: fsdata/fsdata.c
+
+prepare: fsdata/fsdata.c
+
+distclean: clean
+	@$(RM) fsdata/fsdata.c
 
 pretty:
-	astyle --style=google *.c && $(RM) *.orig
+	@astyle --style=google *.c && $(RM) *.orig