diff --git a/libvo/Makefile b/libvo/Makefile
index bdcad4156c..aca39573fc 100644
--- a/libvo/Makefile
+++ b/libvo/Makefile
@@ -3,7 +3,7 @@ include config.mak
 
 LIBNAME = libvo.a
 
-SRCS=aclib.c osd.c font_load.c yuv2rgb.c video_out.c vo_null.c vo_pgm.c vo_md5.c vo_mpegpes.c vo_odivx.c x11_common.c $(OPTIONAL_SRCS)
+SRCS=aspect.c aclib.c osd.c font_load.c yuv2rgb.c video_out.c vo_null.c vo_pgm.c vo_md5.c vo_mpegpes.c vo_odivx.c x11_common.c $(OPTIONAL_SRCS)
 OBJS=$(SRCS:.c=.o)
 
 ifeq ($(TARGET_ARCH_X86),yes)