diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 08c60f782f..ea5df10548 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -351,7 +351,7 @@ OBJS-$(CONFIG_HWUPLOAD_FILTER)               += vf_hwupload.o
 OBJS-$(CONFIG_HYSTERESIS_FILTER)             += vf_hysteresis.o framesync.o
 OBJS-$(CONFIG_ICCDETECT_FILTER)              += vf_iccdetect.o fflcms2.o
 OBJS-$(CONFIG_ICCGEN_FILTER)                 += vf_iccgen.o fflcms2.o
-OBJS-$(CONFIG_IDENTITY_FILTER)               += vf_identity.o
+OBJS-$(CONFIG_IDENTITY_FILTER)               += vf_identity.o framesync.o
 OBJS-$(CONFIG_IDET_FILTER)                   += vf_idet.o
 OBJS-$(CONFIG_IL_FILTER)                     += vf_il.o
 OBJS-$(CONFIG_INFLATE_FILTER)                += vf_neighbor.o