--- old/source/Makefile	2014-04-14 13:00:22.331058910 +0000
+++ new/source/Makefile	2014-04-14 13:02:11.102204544 +0000
@@ -672,6 +672,7 @@
 FREETYPE_LDFLAGS := $(shell $(PKGCONFIG) freetype2 --libs-only-L) $(shell $(PKGCONFIG) freetype2 --libs-only-l)
 
 SDL_INCLUDE := $(shell $(PKGCONFIG) sdl --cflags-only-I)
+SDL_IMG_INCLUDE := $(shell $(PKGCONFIG) SDL_image --cflags-only-I)
 SDL_CFLAGS  := $(shell $(PKGCONFIG) sdl --cflags-only-other)
 SDL_LDFLAGS := $(shell $(PKGCONFIG) sdl --libs-only-L) $(shell $(PKGCONFIG) sdl --libs-only-l)
 
@@ -694,7 +695,7 @@
 endif
 
 DEFINES_L += $(PNG_CFLAGS) $(FREETYPE_CFLAGS) $(SDL_CFLAGS)
-INCLUDES_L += $(PNG_INCLUDE) $(FREETYPE_INCLUDE) $(SDL_INCLUDE)
+INCLUDES_L += $(PNG_INCLUDE) $(FREETYPE_INCLUDE) $(SDL_INCLUDE) $(SDL_IMG_INCLUDE)
 
 endif # TILES